For a 1,500 page book with a subtitle "The definitive guide to Win32 API", I found plenty of holes in the API coverage. It's not even the new additions such as DirectX or TAPI, but also what I would expect to be the core features such as file handling and security features (in NT) are simply not mentioned. Most of the book is dedicated to GUI, printing, etc. While it may be an excellent resource in that area (I have not yet ventured in that part of Win32) it is certainly not a complete overview of Win32 API. If nothing else (isn't 1500 pages too wordy for just the graphical part?), the title is misleading. Be warned.