Since he was just 12 years old, Florian de Looij has been playing about in photoshop and exploring the world of digital animation. Last year he began sharing his creations on a Tumblr blog titled FLRN GIF. He is inspired by optical illusions which is probably why the GIFs you see below are so hypnotic.
Everyday he sets himself the challenge of creating a new GIF so as you can imagine, he's got a lot of impressive creations. You can check out more here, but be warned, you'll probably end up browsing through them for hours.