The book market is absolutely awash with books on Arduino - many (most) aimed at the beginner. I was therefore expecting this to be yet another in that genre and did not have high expectations.
What I found though was a well-written book, one which genuinely spans from the absolute novice level up to some quite sophisticated projects - but always in easy steps, no sudden leaps of complexity. One thing builds on the next in an almost seamless progression. An intelligent motivated reader who wants to go from knowing nothing about Arduino or Microcontrollers to being able to do some truly awesome things with them should find this book an absolutely ideal way of achieving their goal. Truly stands head and shoulders above the comparable books I have read.