Recommended Book on how Windows works

Just thought I would share my thoughts on a book I bought a couple of days ago. This is the book:
Windows Internals 5th Edition
http://www.amazon.com/Windows®-Inter...7479004&sr=8-1

Basically, it describes how windows works internally. Now for any developer that has got to be quite interesting... but for someone such as myself that is an IT support guy and a developer, it is even more useful.

I have only read a few chapters so far but having looked at some of the later chapters such as Memory Management and Cache Manager I think that this book goes into an incredible amount of detail and tells you things that I did not think were available to anyone outside of MS. It tells you the names and purpose of internal operating system functions that are not documented and describes things such as the startup and shutdown process in great detail, as well as security, file systems, I/O systems, crash analysis, hyper v (virtualisation), the windows kernel, processes, threads, volume shadow copy... and a lot more!

It is over 1000 pages long and although not everyone will find every chapter useful or interesting I think for anyone that is interested in programming or is curious how windows works behind the scenes then it is well worth getting.

If anyone else has this book, what do you think of it?

Cheers
Chris