First, I think the win2k driver book is great - well written, helpful, and reasonably concise.

I have found it very helpfull.

Hi, I'm a software developer and I started to read your book two days ago.It's really a very interesting and useful book.

The best I've read so far.  Thank you.

The book is very easy to follow and understand.  I like the fact that I can actually build a driver as I read the book.

I have read all, but one of the Windows 2000/NT device driver books and found this one to be the best for beginners, by far. It is very well organized in a top-down approach. I though the concepts were well presented and easy to understand. After readin two other books on NT device drivers, this one finally explained things clearly for me. The book is also very hands-on. It describes an example device drive in full source and develops it through each chapter. You can actually build the driver as you go and the driver is developed as you would develop your own driver. This book is also not wordy and quick-reading. I would suggest is, if you are trying to grasp Windows device drivers

I like your style very much.  I would love to take your class on this subject.

Lozano did an excellent job of explaining the difference between user-space memory (residing in the first two gigs) and system-space memory (residing in the second two gigs). It's an important issue, and one that wasn't clarified sufficiently in the NT edition of the book.