This is the best single reference on Web technologies I have ever held in my hand. If you want a physical copy of all the methods, properties, objects and statements of JScript, VBScript and ADO, along with an enormous collection of HTML entities and Cascading Style Sheet attributes, buy this book right now.This is a heavy-duty reference. It is not for people who are just learning how to use VBScript or JScript.I don't know why the summary (and one of the other reviews) says the book is 500-600 pages. This reference is 1574 pages thick, and the VBScript section alone is over 200 pages. As an ASP developer, this is by far the best paper product investment I have ever made -- it has replaced a total of 5 other books on my bookshelf, and has probably prevented me from buying a few others. Now I've got room for pictures of my family! :-)