The Ultimate Book of Optical Illusions

The impossible geometry pages alone kept me staring for an hour, and the way each puzzle tricks your brain never gets old. I bought it as a coffee table piece, but it's honestly the most passed-around book in my house right now.

The impossible images section alone had me staring for five minutes trying to figure out where the stairs even went. My brain genuinely hurt by page fifty, but in the best way possible, and the paperback binding lays flat which makes it easy to show friends the tricks.

The "impossible images" section had me staring at the same page for ten minutes, and I still couldn't figure out how the staircase worked. It's the perfect coffee table book for when friends come over—everyone ends up arguing about what they're actually seeing.