http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th-ebook/dp/B006HS77QO/ref=sr_1_1?ie=UTF8&qid=1400776807&sr=8-1&keywords=teach+yourself+electricity+and+electronics

Can't recommend this book more highly. I've never run across a book that got into details so well, but also explained in a way a beginner can understand.