This book provides all of the circut-board, patterns, parts lists and building tips necessary to construct an array of bugs, taps, directional mics, receivers and other pieces of clandestine hardware for education and amusement. You dont need to be a wire sprcialist to appreciate the simplicity & practicality of these wonderfully sneaky designs. 104 pgs, illus, photos, softcvr, 8 1/2 x 11.