Tim Leng is a writer and editor who has previously worked on titles such as The World's Worst Travel Destinations, and Stag Dos and Speeches, for Dog 'n' Bone. He is a qualified Bikram yoga teacher, and the author of a novella, Waiting on a Friend. In addition he edited the autobiography of the award-winning Hollywood visual effects supervisor, Ronald B. Moore. He has always been fascinated by the weird and wonderful world of optical illusions, and leapt at the chance to compile this collection.