Excellent introduction to Arduino. This book is for totally novice in both hardware and software but it would be useful for somebody who is proficient in either but wanting a quick course in Arduino specifics. It's quite amazing how many various - sometimes difficult - concepts this book contains. It explains all that in extremely simple language. The only gripe I have is coverage of software. The book mixes together explanation of standard 'C' constructs and Arduino libraries functions. In fact, 'C' language is not mentioned at all, I think. Somebody new to this could think it's all Arduino specific. I believe 'C' language description doesn't belong in this book and it should just contain the links to 'C' that anybody new to the language should study before going through the book examples of software codes. ( )