Mojang AB 
Minecraft Guide to Redstone [EPUB ebook] 

Learn the art of redstone and become a master engineer with the Minecraft Guide to Redstone, and put theory into practice to construct intricate contraptions in Minecraft.Pick up the basics of the redstone components and their uses, discover how to make working circuits, and create incredibly complex builds using your new skills.With insider info and tips from the experts at Mojang, this is the definitive guide to engineering in Minecraft.