Arduino Playground Geeky Projects for the Curious Maker

Arduino Playground is not for the faint of heart. Unless the faint of heart person plans to build a pacemaker with Arduino!
ScienceBlogs

This is a book designed for Arduino enthusiasts who've mastered the basics, conquered the soldering iron, and programmed a robot or two. Warren Andrews shows you how to keep your hardware hands busy.
I Programmer

Of all the books I've reviewed, I have to say that Arduino Playground is at the top of the list...This isn't your run-of-the-mill DIY electronics book, nor is it for the faint of heart.
Full Circle Magazine

The author's design notes are sure to provide inspiration for your own inventions.
electronics-lab.com