Seeing a title like Rainbow In Your Hand made me think that I would be clicking my way to a gay porn movie. So as any heterosexual male would do, I continued with cautious
bi-curiosity. Rainbow In Your Hand is actually a 36-page flipbook which creates the illusion of a rainbow as you flip through the pages quickly.
Japanese art director and copywriter Masashi Kawamura created the Rainbow In Your Hand book, which does an excellent job of making it appear as if you have a 3D rainbow springing from your palms. — Andrew Dobrow