Grzimek's Animal Life Encyclopedia is a comprehensive 13-volume set published in 1974 by Van Nostrand Reinhold. Authored by Bernhard Grzimek, this hardcover picture book encyclopedia covers a wide range of topics related to animal welfare, zoology, and various genres such as environment, nature, art, and culture. Written in English, this nonfiction work provides detailed information about animals and pets, making it a valuable resource for those interested in the natural world and animal life.