In this issue of Veterinary Clinics of North America: Food Animal Practice, guest editors Drs. Cassandra Olds and Anthony Tarpoff bring their considerable expertise to the topic of Ectoparasites of Cattle and Other Ruminants. Top experts provide an essential, expertly curated overview of today’s most pressing external parasite challenges in food animal health, equipping you with practical, evidence-based strategies for diagnosis, prevention, and control. Other topics include the importance of ecosystem balance, mechanisms of action and resistance, routes of administration, and the evolving regulatory landscape surrounding parasiticides.