Mind Control by David Devlin
Back in 2001 Brad Burt produced David Eldridge's booklet, Mind Control. In the booklet are David's thoughts on Equivoque, or The Magician's Choice Force. Brad said, "(the effects David has created using Equivoque) are subtle and maximally deceptive, and deliver a kind of pure effect that can be the highlight of a professional show."
David Devlin has now reproduced this booklet in e-book format. In it are detailed explanations of how Equivoque works and techniques that make it deceptive. There are routines to get you started, including a routine in which a spectator blindly sets a wristwatch to a random time. Neither the performer, nor the spectator sees the time set on the watch, which is kept under a cloth. The spectator now randomly selects three Tarot cards. He then arranges these cards so they create a "time". The watch is removed from under the cloth (no switch), and the time on the watch matches exactly!
This is a technique that every magician and mentalist should acquire, and this ebook is a treasure trove of information!