If you are looking out to the best Arduino books, you probably already know what Arduino is and what it is used for. Nevertheless, we will brief you with a small introduction as a quick refresher. Arduino is an open-source platform having easy to use hardware and software. It is a board that can read various inputs like a button press, sensor lights, twitter messages, etc. The board consists of a microcontroller which can be coded for instructions on what has to be done for specific inputs.