In an award-winning and groundbreaking study, psychologists Christopher Chabris and Daniel Simons asked volunteers to watch a 60-second film of a group of students playing basketball and told them to count the number of passes made. About halfway through, a woman dressed head to toe in a gorilla outfit slowly moved to centre screen, beat her chest at the camera, and casually strolled away. Unbelievably, almost half of the volunteers missed the gorilla. Insightful, witty, and fascinating, THE INVISIBLE GORILLA is a fascinating look at the unbelievable, yet routine tricks that your brain plays on you.