I am new to Microcontrollers and I found these books to be very helpful in understanding the basics (no pun intended). The books are written in a clear and concise fashion with helpful illustrations and schematics. My initial negative criticism was the price (perhaps a bit steep for paperback reference books), but after reviewing the books, I realized that I made a wise choice in their purchase. It appears also that the author signed each copy with a simple "Happy Cooking" and "Enjoy" above his name. I'm sure I will enjoy having these books in my library!