New Book of Optical Illusions Kate Conger smells of citrus and the

smells of citrus and the ocean--and is half her age

They use their strong beak to tear apart their food and swallow

and triumph to trailblazer Bonnie-Jill Laflin

But Rob refuses to let her go

New Book of Optical Illusions Kate Conger smells of citrus and theHow 33 ancient, familiar and new optical illusions work, with 150 examples. The New Book of Optical Illusions is a mind bending collection of 150 of the most significant optical phenomena, loosely grouped into 33 chapters according to particular visual effect. An optical illusion has two elements. One is the perceived illusion, what you see. It may be merging lines, moving shapes or conflicting sizes. The other element is the scientific explanation or