SeckelphotoAl Seckel is one of the world’s leading experts on visual and sensory illusions and how they relate to the underlying mechanisms of sensory perception. He has lectured extensively on this subject throughout the world at many of the most prestigious universities and venues. He is the author of several best-selling and award-winning books on the science of visual illusions and perception, as well as desktop and wall calendars, and all manner of merchandise. He has also been active in designing and building interactive galleries on illusions and perception for science and discovery museums throughout the world.

Seckel also has a tremendous passion for delightful recreations of the mind, which include puzzles, impossible objects, origami, mazes, creative toys, magic, and mathematical recreations.