"This book was written and illustrated by Charles R. Knight (1874-1953), the acknowledged master of animal drawing... Those who have seen his murals, paintings, and bronzes of both prehistoric and modern animals in the New York Museum of Natural History or any one of a dozen other major zoological museums know why his work is so highly regarded. ... In this book, which is an extensive course in animal drawing, Knight offers an almost incredible wealth of practical instruction to commercial and fine artists, painters, sculptors, book illustrators, designers, decorators, and art students. He discusses animal musculature, bone structure, animal psychology, movements, habits, and habitats. He provides innumerable tips on animal proportions, the play of light and shadow, coloring, hair formation, feather arrangements of birds, scales of fish, how animals lie down, animal expressions, how a lioness bends back her ears when angry, and many others. Scores of animal categories are covered: great apes, tigers, lions, dogs, bears, cattle, horses, antelopes, sheep, goats, camels, swine, seals, rodents, young animals, exotic animals, crocodiles, snakes, fish, and birds."