Mann, Al: The Thinking Machines ©1976 Al Mann, Freehold, NJ Softcover, comb-bound, 8.5x11", 25 pages

Image courtesy eBay seller FlosHubby

Comments: Mathemataical mentalism

Contents (from book):

i Foreword
1 Parsec: lightning calculation
5 One Thousand And One Mysteries: the magic of 1001
5 Phantom Digits: effect with the 1001
7 The Little Foxes: effect using stitch counters
8 The Psychic Squares: with pocket adding machines
10 The Challenge: another effect with a pocket adding machine
12 Golden Digits: 16 digit effect done with paper-roll calculating machine
16 Golden Digits - Second Method: uses one calculator and two slates
18 The Psychic Calculator: three numbers and three calculators
20 Shades Of Inaudi: using a magic cyclic number
22 - With Five Dice!
23 - Using Six Dice
24 Alpha And Omega: a promotional number prediction