This beautifully designed and illustrated guide includes: more than 1300 signs and their descriptions, large, clear, lifelike upper-torso illustrations that show posiiton and movement of the hands, plus their relation to the face and body. Precise, easy-to-follow instructions on how to form each sign. Hints to help remember how to perform specific signs. 14 chapters organized in logical groupings, each beginning with an explanation of the grammatical rules governing ASL. Also a fascinating introduction by Dr. Costello describing the history of the ASL, the role of sign languages throughout the world, interesting regional variations, and more. Also has a complete index and cross reference for quick access to any sign.