Very good entry point

Very interesting book. I learned how to properly use my Arduino Uno (which has since been joined by a twin and Mega). The hardware as the software are explained and the developments on the electronics are valuable for the non-specialist that I am.
I enjoyed the presentation of critical shields some common: at least we know where to flee.

A note about the comments that come out each technique book like "we find the same thing on the net." Perhaps, but: (1) messy, (2) a variable quality, (3) not everyone has access to the net from his workshop. And I would add that the net is good when you know exactly what to look for, but a good book is often more convenient.

A buy eyes closed if you are new to electronics with Arduino.