For animal breeders colour coat genetics is one of the fundamental elements of breeding, along with health and conformation. Breeders need to know about colour coats for showing purposes and where the fibre is used in industry, for example sheep and alpaca wool. The science behind breeding for genetic traits is complex because of dominant and recessive traits. Because animals inherit two alleles for the base coat colour, it is possible that their phenotype, or visual appearance, does not reflect their underlying genotype. This book is a practical guide for breeders on the biology behind colour coats in large animals directing breeders on how to implement breeding strategies to achieve desired results.