How did animal breeding emerge as a movement? Who took part and for what reasons? How do the pedigree and market systems work? What light might the movement shed on the assumptions behind human eugenics? In Bred for Perfection, Margaret Derry provides the most comprehensive and accessible book yet published on the human quest to improve and develop livestock. Derry, herself a breeder and trained historian of science, explores the "triangle" of genetics, eugenics, and practical breeding, focusing on Shorthorn cattle, show dogs and working dogs, and one type of purebred horse, the Arabian. By examining specific breeders and the animals they produced, she illuminates the role of technology, genetics, culture, and economics in the system of purebred breeding. Bred for Perfection also provides the historical context in which this system arose, adding to our understanding of how domestication works and how our welfare—since the dawn of time—has been intertwined with the lives of animals.

Animal breeding has been complicated by persisting factors across species, cultures, geography, and time. In Made to Order, Margaret E. Derry explains these factors and other breeding concerns in relation to both animals and society in North America and Europe over the past three centuries. Made to Order addresses how breeding methodology evolved, what characterized the aims of breeding, and the way structures were put in place to regulate the occupation. Illustrated by case studies on important farm animals and companion species, the book presents a synthetic overview of livestock breeding as a whole. It gives considerable emphasis to genetics and animal breeding in the post-1960 period, the relationship between environmental and improvement breeding, and regulation of breeding as seen through pedigrees. In doing so, Made to Order shows how studying the ancient human practice of animal breeding can illuminate the ways in which human thinking, theorizing, and evolving characterize our interactions with all-natural processes.