Symptoms, Medications, and Prevention Guide
Complete guide to coccidia treatment in dogs — covers symptoms, diagnosis, prescription medications, environmental cleanup, and prevention strategies for 2026.
If your dog has watery diarrhea, lethargy, and a recent history of kennel stays or puppy playgroups, coccidiosis might be the culprit. Coccidia are microscopic, single-celled parasites that infect the intestinal lining of dogs, causing anything from mild digestive upset to life-threatening dehydration in puppies. Understanding coccidia treatment in dogs requires knowing the parasite's biology, the medications that actually work, and the environmental cleanup that prevents reinfection.
This guide covers everything from identification to treatment protocols, drawing on current veterinary parasitology standards. As always, consult your veterinarian for a definitive diagnosis and treatment plan tailored to your dog's specific situation.
What Is Coccidia? Parasite Identification and Biology
Coccidia at a Glance
| Attribute | Details |
|---|---|
| Organism Type | Protozoan (single-celled parasite), primarily Isospora canis and Isospora ohioensis complex in dogs |
| Size | Oocysts measure 10–50 micrometers — invisible to the naked eye; identified only via fecal flotation under a microscope (400× magnification) |
| Color/Appearance | Oocysts appear as smooth, oval or spherical structures with a double-layered wall; colorless to light amber under microscopy |
| Location in Host | Intestinal epithelial cells — primarily the small intestine (jejunum and ileum); heavy infections may extend to the cecum and colon |
| Where Found on Dog | Not found externally; oocysts are shed in feces and contaminate the environment |
| Species Specificity | Dog-specific species (Isospora canis) do not infect humans; however, dogs may ingest Toxoplasma or Cryptosporidium oocysts, which have zoonotic potential |
Coccidia are not worms — they are protozoan parasites, fundamentally different from roundworms, hookworms, or tapeworms. This distinction matters because standard dewormers like pyrantel pamoate or praziquantel have zero efficacy against coccidia. The most common species affecting dogs in the United States belong to the genus Isospora, specifically I. canis, I. ohioensis, I. burrowsi, and I. neorivolta.
According to the Merck Veterinary Manual, coccidiosis is most prevalent in puppies under 6 months of age, dogs in high-density environments (shelters, kennels, breeding facilities), and immunocompromised adults.
Life Cycle and Transmission: How Dogs Get Coccidia
The Coccidia Life Cycle (Step by Step)
- Oocyst Shedding: An infected dog passes unsporulated (non-infective) oocysts in feces. A single infected dog can shed millions of oocysts per day.
- Sporulation (Environmental Maturation): In warm, moist, shaded environments (optimal temperature 68–86°F / 20–30°C), oocysts sporulate within 12–72 hours, becoming infective. Sporulated oocysts contain sporocysts with invasive sporozoites.
- Ingestion: A dog ingests sporulated oocysts by sniffing, licking, or eating contaminated soil, feces, water, or surfaces. Puppies often acquire infection by nursing from a dam with contaminated fur or teats.
- Excystation: In the dog's small intestine, digestive enzymes and bile salts trigger the oocyst wall to break open, releasing sporozoites.
- Cellular Invasion: Sporozoites penetrate intestinal epithelial cells and begin asexual reproduction (merogony/schizogony), producing merozoites that rupture the host cell and invade neighboring cells.
- Sexual Reproduction: After several asexual cycles, some merozoites differentiate into male (microgamonts) and female (macrogamonts) forms. Fertilization produces a zygote, which develops a protective wall to become a new oocyst.
- Shedding Begins: New unsporulated oocysts are passed in feces, restarting the cycle. The prepatent period (infection to shedding) is typically 5–11 days depending on species.
Primary Transmission Routes
- Fecal-oral (direct): Dogs sniffing or consuming infected feces — the most common route in multi-dog households and kennels
- Environmental contamination: Sporulated oocysts survive months in soil, concrete runs, grassy yards, and standing water; they resist freezing and many common disinfectants
- Fomites: Contaminated food bowls, bedding, grooming tools, shoes, and human hands can mechanically carry oocysts
- Paratenic (transport) hosts: Dogs may acquire I. canis by ingesting infected rodents or other small animals that have consumed oocysts
- Dam-to-puppy: Puppies ingest oocysts from the dam's contaminated coat, bedding, or whelping environment during nursing
The critical insight for owners: coccidia is fundamentally an environmental disease. Even if you treat the dog, sporulated oocysts in your yard or kennel can reinfect your dog within days. This is why environmental control is non-negotiable in any coccidia treatment protocol.
Symptoms of Coccidiosis: Mild vs. Severe Infection
| Severity | Symptoms | Typical Patient Profile | Onset Timeline |
|---|---|---|---|
| Subclinical / Mild | Intermittent soft stools, mild appetite reduction, normal energy levels, slight weight loss over weeks | Healthy adult dogs with mature immune systems; often discovered incidentally on routine fecal exam | Symptoms may appear 3–11 days post-infection or never manifest clinically |
| Moderate | Consistent watery or mucoid diarrhea, decreased appetite, mild dehydration (tacky gums, slightly delayed skin tent), occasional vomiting, reduced activity | Young adults in stressful conditions (boarding, travel, recent surgery); puppies 3–6 months old | 4–7 days post-ingestion of sporulated oocysts |
| Severe / Life-Threatening | Profuse watery or hemorrhagic (bloody) diarrhea, severe dehydration (sunken eyes, prolonged skin tent), anorexia, lethargy, fever (103–105°F / 39.4–40.6°C), weight loss, abdominal pain, tenesmus (straining to defecate), hypoglycemia in toy-breed puppies, potential rectal prolapse | Puppies under 8 weeks, immunocompromised dogs, puppies with concurrent parvovirus or parasitic infections | 3–5 days post-infection; deterioration can occur within 24–48 hours in neonates |
An important clinical nuance: the presence of coccidia oocysts on a fecal flotation does not automatically mean coccidia is causing the diarrhea. Many healthy dogs carry low-level Isospora infections asymptomatically. Your veterinarian will evaluate the full clinical picture — oocyst count, symptom severity, patient age, and concurrent diseases — before attributing illness to coccidiosis.
🚨 When to Call Your Veterinarian Immediately
- Bloody or black, tarry diarrhea in any dog, especially puppies under 12 weeks
- Diarrhea lasting more than 48 hours without improvement
- Signs of dehydration: dry/tacky gums, sunken eyes, lethargy, loss of skin elasticity
- Vomiting combined with diarrhea (risk of rapid fluid loss)
- Refusal to eat or drink for more than 12 hours in a puppy, 24 hours in an adult
- Fever above 103.5°F (39.7°C)
- Known exposure to parvovirus or incomplete puppy vaccination series — diarrhea in an under-vaccinated puppy is a parvo emergency until proven otherwise
Diagnosis: What to Expect at the Vet
Your veterinarian will typically run the following diagnostics:
- Fecal flotation (zinc sulfate or sugar solution): Identifies coccidia oocysts under microscopy. Cost: $25–$55 per test. Note that intermittent shedding can produce false negatives; your vet may request multiple samples over 2–3 days.
- Direct fecal smear: Quick in-clinic check for oocysts, giardia, and bacteria. Less sensitive than flotation but faster.
- Fecal ELISA or PCR panel: Some clinics use multiplex GI panels (e.g., IDEXX RealPCR™ GI Panel) that detect coccidia DNA alongside giardia, cryptosporidium, campylobacter, and other pathogens. Cost: $80–$180.
- CBC and chemistry panel: For severe cases, to assess dehydration, electrolyte imbalances, hypoglycemia, and anemia. Cost: $80–$200.
- Parvovirus antigen test: Any puppy with hemorrhagic diarrhea should be tested for parvo regardless of coccidia findings. Cost: $40–$75.
Coccidia Treatment in Dogs: Medications and Protocols
Standard Treatment Protocol
1. Sulfadimethoxine (Albon®) — FDA-Approved Coccidiostat
Sulfadimethoxine is the only FDA-approved medication for coccidia treatment in dogs in the United States. It works as a coccidiostat, meaning it inhibits coccidia reproduction rather than killing the organisms outright — the dog's immune system must clear the remaining parasites.
- Dosage: 25 mg/lb (55 mg/kg) on day one as a loading dose, then 12.5 mg/lb (27.5 mg/kg) once daily thereafter
- Duration: 5–25 days depending on clinical response; most protocols run 10–14 days
- Form: Oral suspension (5% solution, 50 mg/mL) or tablets (125 mg, 250 mg, 500 mg)
- Prescription required: Yes — your veterinarian must prescribe this medication
- Cost range: $15–$45 for a standard 10-day course for a 20-lb dog; higher for large breeds
- Key considerations: Ensure adequate water intake to prevent sulfa crystal formation in urine (crystalluria); avoid in dogs with known sulfa allergy, severe liver or kidney disease, or dry eye (KCS) predisposition. Do not use in puppies under 4 weeks of age without close veterinary supervision.
2. Trimethoprim-Sulfamethoxazole (TMS) — Off-Label Alternative
When sulfadimethoxine is unavailable or contraindicated, some veterinarians prescribe trimethoprim-sulfamethoxazole, a combination sulfa antibiotic with anticoccidial properties.
- Dosage: 15 mg/kg (combined TMS) orally every 12 hours
- Duration: 7–14 days
- Prescription required: Yes
- Cost range: $10–$30 for a standard course (generic formulations are inexpensive)
- Key considerations: Same sulfa-class precautions apply; monitor for keratoconjunctivitis sicca (dry eye) in predisposed breeds
3. Ponazuril (Marquis® / Compounded) — Coccidiocidal Option
Ponazuril is a triazine-class antiprotozoal that kills coccidia (coccidiocidal) rather than merely inhibiting reproduction. Originally FDA-approved for equine protozoal myeloencephalitis (EPM), it is widely used off-label in dogs, particularly in shelter medicine and for refractory cases.
- Dosage: 10–20 mg/kg orally once daily (some protocols use a single dose repeated in 7 days; others use 3–5 consecutive days)
- Duration: 1–5 days depending on protocol — significantly shorter treatment course than sulfa drugs
- Prescription required: Yes; often obtained through compounding pharmacies for canine-appropriate concentrations
- Cost range: $25–$80 depending on compounding pharmacy and dog size
- Key considerations: Often preferred in shelters because shorter treatment duration improves compliance. The ASPCA and shelter medicine programs (e.g., UW-Madison Shelter Medicine) frequently recommend ponazuril for outbreak management. Mild GI upset possible; give with food.
4. Toltrazuril (Baycox®) — International Standard
Toltrazuril is widely used in Europe, Australia, and Canada for canine coccidiosis and is the parent compound of ponazuril (ponazuril is toltrazuril sulfone, its active metabolite). Not commercially available in the U.S. for dogs, but may be accessible through compounding pharmacies or imported formulations under veterinary guidance.
- Dosage: 5–10 mg/kg orally once daily for 1–3 days
- Key considerations: Short course, coccidiocidal; studies in veterinary parasitology journals show high efficacy with single or two-dose protocols
5. Supportive Care — Critical for Moderate to Severe Cases
- Fluid therapy: Subcutaneous or IV fluids (lactated Ringer's solution) for dehydrated patients. In-clinic IV fluid costs: $150–$400 per day depending on facility.
- Probiotics: Enterococcus faecium–based products (e.g., FortiFlora®, Proviable®) to support gut microbiome recovery during and after treatment
- Bland diet: Prescription gastrointestinal diets (Hill's i/d, Royal Canin GI, Purina EN) or home-cooked boiled chicken and white rice for 5–7 days during recovery
- Anti-emetics: Maropitant (Cerenia®) if vomiting is present; prescribed by your vet at 1 mg/kg once daily
Treatment Efficacy Comparison
| Medication | Type | Treatment Duration | Efficacy | Prescription? | Cost Range (20-lb dog) |
|---|---|---|---|---|---|
| Sulfadimethoxine (Albon) | Coccidiostat | 10–25 days | High (clinical resolution in 5–7 days; oocyst clearance may take longer) | Yes | $15–$45 |
| Trimethoprim-Sulfa (TMS) | Coccidiostat | 7–14 days | Moderate to high; variable by strain | Yes | $10–$30 |
| Ponazuril (compounded) | Coccidiocidal | 1–5 days | Very high; often single-dose effective in shelter studies | Yes | $25–$80 |
| Toltrazuril (Baycox) | Coccidiocidal | 1–3 days | Very high; gold standard in European veterinary practice | Yes (compounded/imported) | $30–$90 |
| OTC "coccidia" products | Various (often amprolium) | Varies | Low to unproven for canine Isospora; amprolium is labeled for poultry, not dogs | No | $10–$25 (not recommended) |
Critical note on OTC products: Amprolium (Corid®) is widely sold in farm supply stores for poultry coccidiosis. It is not FDA-approved for dogs, and efficacy data for canine Isospora species is limited. Some holistic or backyard-farming sources recommend it, but veterinary parasitologists generally advise against relying on amprolium for dogs when proven prescription options exist. Never substitute an OTC product for veterinary-prescribed treatment in a symptomatic dog.
Environmental Control: Breaking the Reinfection Cycle
This is where most coccidia treatment plans fail. You can medicate your dog perfectly, but if sporulated oocysts persist in the environment, reinfection occurs within days. Here is a systematic approach to environmental decontamination:
Indoor Environment
- Immediate feces removal: Pick up all feces from yards, kennels, and indoor accidents immediately — before oocysts can sporulate (remember, sporulation takes 12–72 hours in ideal conditions)
- Hard surface disinfection: Oocysts resist many common household disinfectants. Effective options include: 10% ammonia solution (1 part household ammonia to 9 parts water — ensure ventilation and never mix with bleach), or steam cleaning at temperatures above 158°F (70°C) for at least 10 minutes of contact time
- Laundry: Wash all bedding, towels, and fabric items in hot water (minimum 140°F / 60°C) and dry on high heat for at least 30 minutes
- Concrete kennel runs: Scrub with detergent, rinse thoroughly, then apply 10% ammonia or commercial kennel disinfectant; allow complete drying — desiccation kills oocysts
Yard and Outdoor Areas
- Feces removal: Daily pickup of all feces from the yard; do not compost dog feces (composting temperatures rarely reach levels needed to kill oocysts)
- Sunlight exposure: Trim overgrown vegetation to allow direct sunlight onto soil and grass — UV radiation and heat above 95°F (35°C) reduce oocyst viability
- Drainage improvement: Eliminate standing water and muddy areas where oocysts thrive; oocysts survive for months in cool, moist, shaded soil
- Topsoil replacement: In heavily contaminated kennel runs or small yards, removing the top 2–3 inches of soil and replacing with fresh material or gravel may be necessary for persistent outbreaks
- Rodent control: Eliminate rodent populations that can serve as transport hosts for I. canis
Oocyst Survival Timeline
| Environment | Oocyst Survival Duration |
|---|---|
| Dry, sunny, hot surfaces (concrete, summer pavement) | Hours to a few days |
| Indoor kennel (dry, room temperature) | Days to 2 weeks |
| Shaded, moist soil (yard, garden) | Months — potentially over a year in cool, damp conditions |
| Standing water / puddles | Several months |
| Frozen ground (winter) | Oocysts survive freezing; they resume viability upon thawing |
Seasonal Risk and Regional Patterns
Coccidia Risk Calendar by U.S. Region
| Region | Peak Risk Season | Contributing Factors |
|---|---|---|
| Southeast (FL, GA, AL, MS, LA, SC) | Year-round, highest March–October | Warm, humid climate supports continuous oocyst sporulation; heavy spring/summer rainfall maintains moisture in soil |
| Northeast (NY, MA, PA, NJ, CT) | May–October | Warm, humid summers; spring thaw creates muddy conditions; boarding/daycare increases in summer travel season |
| Midwest (IL, OH, MI, WI, MN) | April–October | Spring melt and summer humidity; shelter intake spikes in spring (puppy season) drive outbreaks |
| Southwest (AZ, NM, NV, SoCal) | Monsoon season (July–September); also spring | Dry heat normally suppresses oocysts, but monsoon rains create ideal moist pockets; irrigated yards maintain risk year-round |
| Pacific Northwest (WA, OR) | October–May (rainy season) | Prolonged wet, cool conditions are ideal for oocyst persistence; shaded environments common |
Universal risk amplifiers: Boarding facilities, dog daycares, grooming salons, dog parks, and shelters see elevated coccidia transmission regardless of season due to high dog density and shared environments. Puppy season (spring and early summer) consistently correlates with case spikes nationwide.
Prevention: Products and Strategies
Unlike fleas, ticks, and heartworm, there is no monthly preventive product specifically labeled for coccidia prevention in dogs. This makes management and hygiene the cornerstone of prevention.
Parasite Prevention Products: What They Do and Don't Cover
Many owners assume their monthly parasite preventive covers coccidia. It does not. Here is what common preventives actually protect against:
| Product Type | Example Products (2026 Market) | Active Ingredients | Covers Coccidia? | What It Covers | Duration |
|---|---|---|---|---|---|
| Oral broad-spectrum | Simparica Trio®, NexGard PLUS | Sarolaner/moxidectin/pyrantel or afoxolaner/moxidectin/pyrantel | No | Fleas, ticks, heartworm, roundworms, hookworms | Monthly |
| Oral heartworm + GI parasites | Interceptor Plus®, Sentinel Spectrum | Milbemycin oxime/praziquantel or milbemycin/lufenuron/praziquantel | No | Heartworm, roundworms, hookworms, whipworms, tapeworms | Monthly |
| Topical broad-spectrum | Revolution Plus® (dogs) | Selamectin/sarolaner | No | Fleas, ticks, heartworm, ear mites, sarcoptic mange, roundworms, hookworms | Monthly |
| Collar | Seresto® | Imidacloprid/flumethrin | No | Fleas, ticks | 8 months |
| Coccidia-specific (treatment only) | Albon® (sulfadimethoxine), compounded ponazuril | Sulfadimethoxine or ponazuril | Treatment only — not labeled as preventive | Isospora species | Treatment course (1–25 days) |
Key takeaway: No commercially available monthly preventive covers coccidia. Prevention relies on environmental management, hygiene, and prompt fecal removal — not a pill or topical.
Evidence-Based Prevention Strategies
- Prompt feces removal: Pick up feces within hours (before sporulation can occur). This single practice is the most effective preventive measure.
- Regular fecal testing: The Companion Animal Parasite Council (CAPC) recommends fecal testing 2–4 times per year for puppies and 1–2 times per year for adult dogs, even if asymptomatic.
- Kennel hygiene protocols: If you board your dog, ask the facility about their disinfection protocols — steam cleaning and ammonia-based disinfection are indicators of good coccidia awareness.
- Quarantine new dogs: When introducing a new dog to a multi-dog household, request a fecal exam before co-housing; keep the new dog separated for 7–14 days while monitoring stool quality.
- Water management: Prevent dogs from drinking from puddles, standing water, or communal bowls at dog parks.
- Puppy-specific precautions: Have your breeder or rescue provide a fecal exam result before you bring a puppy home; schedule a fecal test at your first veterinary visit (typically within 48–72 hours of adoption).
Zoonotic Potential: Can Humans Get Coccidia from Dogs?
The canine-specific Isospora species (I. canis, I. ohioensis complex) are not zoonotic — they cannot infect humans. This is well-established in veterinary parasitology literature.
However, there are important nuances:
- Toxoplasma gondii: Dogs can mechanically carry T. gondii oocysts on their fur after rolling in contaminated soil or cat feces. While dogs are not the definitive host (cats are), contaminated dog fur could theoretically transfer oocysts to human hands. Practice good hand hygiene after handling dogs that have been in environments with outdoor cats.
- Cryptosporidium species: Some Cryptosporidium species found in dog feces (particularly C. canis and C. parvum) have zoonotic potential. These oocysts can appear similar to Isospora on fecal flotation but are smaller (4–6 μm vs. 10–50 μm). Immunocompromised humans are at highest risk.
- Immunocompromised household members: If anyone in your household is immunocompromised (HIV/AIDS, chemotherapy, organ transplant, congenital immunodeficiency), consult both your physician and veterinarian about parasite screening protocols for all household pets.
For multi-pet households: canine Isospora species do not infect cats, and feline Isospora (e.g., I. felis) do not infect dogs. Cross-species transmission between dogs and cats is not a concern for Isospora.
Cost Breakdown: Diagnosis, Treatment, and Follow-Up
| Service / Item | Estimated Cost Range (U.S., 2026) |
|---|---|
| Office visit / exam fee | $55–$120 |
| Fecal flotation test | $25–$55 |
| Fecal PCR GI panel (comprehensive) | $80–$180 |
| CBC / chemistry panel (if severe) | $80–$200 |
| Parvovirus test (puppies) | $40–$75 |
| Sulfadimethoxine (Albon), 10–14 day course | $15–$45 |
| Ponazuril (compounded), short course | $25–$80 |
| Subcutaneous fluids (in-clinic, per session) | $40–$85 |
| IV fluid therapy (hospitalization, per day) | $150–$400 |
| Probiotics (FortiFlora, Proviable) | $15–$35 per box |
| Prescription GI diet (2-week supply) | $35–$65 |
| Total: mild case (outpatient) | $110–$310 |
| Total: severe case (hospitalization) | $500–$1,500+ |
Frequently Asked Questions
How do I know if my dog has coccidia?
The only definitive way to diagnose coccidia is through a fecal flotation test performed by your veterinarian. Clinical signs that should prompt testing include watery or mucoid diarrhea (especially in puppies), diarrhea lasting more than 48 hours, and diarrhea following kennel stays, shelter adoption, or dog park visits. Some dogs carry coccidia with no symptoms at all, which is why routine fecal screening is important.
How do dogs get coccidia?
Dogs ingest sporulated coccidia oocysts from contaminated environments — soil, feces, standing water, kennel surfaces, or contaminated fur. Puppies often acquire infection from the dam's contaminated environment during nursing. Dogs may also ingest infected rodents (transport hosts for I. canis). The oocysts must sporulate (mature) in the environment for 12–72 hours after being passed in feces before they become infective.
What are the best prevention products for coccidia?
There are no monthly preventive medications labeled for coccidia prevention in dogs. Prevention relies entirely on environmental management: prompt feces removal (before oocysts sporulate), kennel hygiene with effective disinfectants (ammonia solutions, steam cleaning), avoiding stagnant water sources, and routine fecal testing 2–4 times per year for puppies and 1–2 times for adults. Your monthly heartworm/flea/tick preventive does not protect against coccidia.
How do I treat a coccidia infestation in my dog?
Treatment requires prescription medication from your veterinarian. The FDA-approved option is sulfadimethoxine (Albon), administered for 10–25 days. Many veterinarians also use ponazuril (compounded), which kills coccidia directly and requires only 1–5 days of treatment. Supportive care — fluids, probiotics, and a bland diet — is essential for moderate to severe cases. Simultaneously, you must decontaminate your dog's environment to prevent reinfection.
Can coccidia spread to humans or other pets?
Canine Isospora coccidia are species-specific and do not infect humans, cats, or other species. However, dogs can mechanically carry zoonotic parasites like Toxoplasma or Cryptosporidium on their fur. Immunocompromised household members should consult their physician about pet parasite screening. In multi-dog households, coccidia spreads readily between dogs, so all dogs in the home should be tested and potentially treated simultaneously.
How often should I treat or test my dog for coccidia?
Treatment is only administered when an active infection is diagnosed — there is no routine preventive treatment schedule. However, the CAPC recommends fecal testing 2–4 times per year during a puppy's first year and 1–2 times per year for adult dogs. In multi-dog households, kennels, or breeding facilities with a history of coccidiosis, more frequent monitoring (quarterly fecal exams) is advisable. After successful treatment, a follow-up fecal test at 2–4 weeks confirms clearance.
Can coccidia kill a puppy?
Yes. In puppies under 8 weeks of age, particularly toy breeds prone to hypoglycemia, severe coccidiosis can cause life-threatening dehydration, electrolyte imbalances, and secondary bacterial infections. Puppies with concurrent parvovirus, hookworm, or other parasitic infections are at even greater risk. Early veterinary intervention with appropriate medication and fluid therapy dramatically improves outcomes — the prognosis for treated puppies is generally excellent.
Does my dog need to be retested after treatment?
Most veterinarians recommend a follow-up fecal flotation 2–4 weeks after completing treatment to confirm oocyst clearance. If oocysts persist, a second treatment course — potentially with a different medication class (e.g., switching from sulfadimethoxine to ponazuril) — may be necessary. Persistent positive results may also indicate environmental reinfection rather than treatment failure.
Coccidia treatment in dogs is straightforward when caught early, but it demands a two-pronged approach: effective medication prescribed by your veterinarian and rigorous environmental decontamination to prevent the cycle from restarting. If your dog has diarrhea that persists beyond 48 hours, especially after boarding, travel, or contact with other dogs, schedule a fecal exam promptly. Early treatment keeps costs low, recovery fast, and your dog comfortable.
Jonas Cole
All our authors care for dogs every day — read more of their work on the authors page.
