Get your sights in a spin with this crazy collection of optical illusions!

Each of the fifty cards is printed with an extraordinary image or pattern guaranteed to make you think twice. From patterned wheels that spin out of the corner of your eye to kaleidoscopic mosaics that wiggle on the page, these visual tricks are truly brain bending.

Baffle your friends and family with some truly mind-boggling illusions - sure to amaze.

Professor Puzzle is a London-based company with the mission to create the world's best brainteasers. When travelling in his youth, Professor Puzzle stumbled on ancient puzzles in a far-flung corner of the world he was hooked. Metal puzzles were sold by a man on the street in Calcutta and a deal was immediately struck to commence metal-bending, puzzle-making training.