Fulves, Karl: Cards 1, Four Card Brainwave ©1978 Karl Fulves Softcover, saddle-stitched, 7x8.5", 20 pages

Image courtesy eBay seller KochMagic

Comments: Spectator thinks of an Ace, which is found to be the only reversed card in the packet of four Aces, and it also has a different color back.

Contents (courtesy Denis Behr's ConjuringArchive)

1 Introduction
3 Four Card Brainwave - The First Method
4 The Second Method
6 The Third Method
7 The Fourth Method
8 The Fifth Method
11 The Sixth Method
13 Historical Note
15 Five Card Brainwave
17 Brainstorm