An audio book comprising: a plurality of leaves with an inductively-powered transponder fastened to each leaf, each transponder having a unique code, one or both of the pages of each leaf bearing printed matter; a power source mounted in the book; an processor connected to the power source and having audio related to the printed matter; and a page sensing circuit including: a reader coil for magnetically inducing an electrical current for powering the transponders; and a receiver connected to the processor for receiving the unique codes from the transponders, wherein the audio related to the matter printed on any one of the pages which is opened is played by the processor according to the unique codes received by the receiver.