Amazon.com just posted my five star review of Introduction to Microprocessors. From the review:
"John Crisp's Introduction to Microprocessors (ITM) is an excellent book. It has a low average score because the author posted the first review with zero stars, which could be the result of an Amazon.com error. I loved this book. It gets right to the heart of the matter regarding the operations of microprocessors. Anyone who wants to really know what happens inside their CPU will love ITM too."
I learned a second edition was just published, so I hope to read and review that book soon.