SPY SCHOOL

Books featuring information in the field or subject matter of espionage, codes, disguises, and/or espionage skills; and kits primarily containing books as well as devices and paraphernalia in the nature spy glasses, disguises, lock picks, cameras, listening devices, sound and image sensing, recording and transmitting devices, radio transmitters and receivers, disappearing ink, compasses and/or encoding and decoding devices pertaining to the field of espionage; and a series of books in the field of espionage