From Semaphore and sign language to weather symbols and signals used by sports referees, we are surrounded by a bewildering array of non-verbal forms of communication. Some of them are easily understood, others require explanation. The Directory of Signs & Signals offers an informative guide to many of them, in an easy-reference pocket format, making them simple to learn and use. It includes: Distance communication: Semaphore, Morse code, and maritime signal flags; Personal communication: Braille, American Sign Language, British Sign Language, and emoticons; Survival: Ground-to-air signals, body signals, and trail signs; Sports: American football hand signals, soccer hand signals, and motor-racing flags; Miscellaneous: Trading signals and weather symbols.