Ladyada's "E is for Electronics" is a coloring book adventure with electronic components and their inventors.

Makers of all ages can learn, color, and share common parts and historical figures throughout history. Explore the world of electronics with Ladyada as your guide!

Here's an excerpt:

"A diode lets electrons flow in only one direction. It works like a switch: when current is flowing one way, the switch is on, but when current tries to flow the other way, the switch turns off. Sir John Ambrose Fleming is best known for inventing the diode, originally called the kenotron."