See below for English description.

Incroyable Il faut le voir pour le croire Ce livre invite le lecteur ? se glisser dans une autre dimension, l? o? l'illusion d'optique et le trompe-l'oeil promettent de confondre les plus scrupuleux observateurs. Sont inclus un papier-miroir pour d?coder les images et une feuille d'ac?tate pour cr?er des effets moir?s.

Seeing is believing... But what if you simply can't believe your eyes? Slip into another dimension and experience the eye-boggling and brain-twisting extremes of awesome optical illusions. Bend the flexible mirror to decode the secret images and make mesmerizing moire patterns with the printed acetate sheet. Plus there's a pull-out ruler to help you check whether you're being tricked. This is a reality-ripping collection of visual puzzles with which to amaze your mates, befuddle your family and blow your own mind

Original Title: Awesome Optical Illusions