Jones, Simon (2002). “Geller, Uri”. In Shermer, Michael. The Skeptic Encyclopedia of Pseudoscience, Volume 1. Santa Barbara, California: ABC-CLIO. pp. 113–15. ISBN1-57607-654-7. "Geller maintains that he has never used trickery to achieve his effects. However, conjurors have produced similar feats using sleight-of-hand and misdirection techniques [...] some observers claim to have caught Geller in the act of bending cutlery with his hands"
Nickell, Joe (2005). Camera Clues: A Handbook for Photographic Investigation. Lexington, Kentucky: University Press of Kentucky. pp. 198–200. ISBN0-8131-1894-8. "Skeptics point out that Geller is a former magician, that magicians can duplicate his effects by clever tricks, and that he refuses to perform when magicians are observing-apparently afraid they might discover his trickery. In fact Geller has actually been caught cheating. In one instance, although he pretended to cover his eyes while a secretary made a simple drawing, Geller actually peeked, thus enabling him to appear to read her mind and produce the drawing. Again, instead of bending a key "by concentration" as he pretended, Geller bent the key against a table when he thought no one was looking."
