Encyclopedia of Cockatiels by George A. Smith (TFH Publications, 1984; later reprints in the 1990s) is a comprehensive guide to the care, breeding, and behavior of cockatiels. Written for bird enthusiasts and aviculturists, it covers topics such as housing, feeding, health management, taming, training, and color mutations. The book also provides detailed illustrations and photographs to aid identification and appreciation of these popular companion birds.