Very rare indeed that you encounter a VB book worth the paper it's printed on. With the Hardcore series out of print and nearly every other book prefaced with beginner, it not often you find a good book on VB not written by Kurata or Appleman.
As the title says, it is a "code-intensive resource." That, backed by the wide range of topics covered (Lang Basics, File I/O, ADO, NT Services, some COM, Win32 API, etc) makes it a solid resource.
I've worked the Net services and .com industry for three years and this is the best VB book I have come across.
Of course, I hate VB and would rather write Java...but that's another story.