Fantastic optical illusions

[Table of contents]. What is an illusion?

2-D or not 2-D?

Learn your lines

Sizing it up

Moving pictures

Do you see?

Are you bright enough?

Double take

That's impossible

Mind benders

Think outside the box

A-maze-ing paths

Are you in the loop?

Wordplay

Seeing is believing

Mad math

Defying gravity

Body benders

Do try this at home

Answers

Color vision

After images

Color effects

Color in context

Why is color useful?

Who's who?

Now you see me ...

Did you know?

Colorless.