horse breeds
Over the years, the field guide and the coffee table book have merged, and we now have coffee table-ish books (but serious books) that include a species description of every critter in a certain clade. In the case of Horses of the World by Élise Rousseau (Author), Yann Le Bris (Illustrator), Teresa Lavender Fagan (Translator), while every living species of horse is in fact covered, the book is a comprehensive guide to breeds of horses.
Of which there are 570.
A horse is horse, of course, but but is a donkey or an ass? What about zebras?
Horse people are very picky about what they call a…