Some books have a Chapter Zero. That‘s the chapter with the stuff the reader needs to know before reading Chapter One. Chapter Zero might be a refresher course in subjects the reader once knew but has now forgot-ten, or it might be a quick-and-dirty summary of prerequisites for the rest of the book.
This book originated as a Chapter Zero in my book Applications = Code + Markup: A Guide to the Microsoft Windows Presentation Foundation (Microsoft Press, 2006), which is about the new Windows client program-ming platform that‘s part of Microsoft .NET 3.0 and Microsoft Windows Vista.
Download .NET Book Zero (pdf)