Now that I have your attention, let me stress that this is a great book of the highest quality, much more complete than most other books. There is, however, something that you should know before ordering the book (instead of having a "WTF?" moment when reading it):
The authors had made the decision to move some of the advanced material in some chapters on analog electronics into the upcoming book "The x-Chapters" which will be available in a few years. If they had not, there is no way that the book could have been finished by now.
These are the affected chapters:
Chapter 1: Foundations
Chapter 2: Bipolar Transistors
Chapter 3: Field-Effect Transistors
Chapter 4: Operational Amplifiers
Chapter 9: Voltage Regulation and Power Conversion
But even the book as it is now contains an incredible amount of information, probably too much for most people to digest.
In case you are interested, I have written more about the book in my review here:
http://www.wisewarthog.com/electronics/horowitz-hill-the-art-of-electronics-3rd-edition.html