Nathaniel Burney's Illustrated Guide to Criminal Law is a complete first-year Criminal Law course in comic form, in 17 parts on a Tumblr. It's clearly written, and the illustrations go a long way toward making complex ideas easier to grasp. Burney's comics have been collected between covers in a printed book, which would make a great gift for would-be criminals and anyone considering pre-law.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.