The book begins with descriptions of the biology ofgastrointestinal nematodes, the harm they cause to the host andtheir economic impact. The main body of the book deals withthe control of worms, focusing on the use of anthelmintic drenches.The relationship between drenching practices and the development ofdrug resistance is discussed, as well as resistance management. Theauthors also break new ground by discussing alternative options forworm control, including: nutritional interventions, biologicalcontrol, breeding for desirable genetics and artificially improvingimmunity to infection. They also offer useful recommendations forprogram development.