VB & VBA in a Nutshell: The Language (In a Nutshell (O'Reilly))
Paul Lomax
VB.NET Language in a Nutshell
Steven Roman & Paul Lomax & Ron Petrusha
Steven.roman & Paul Lomax & Ron Petrusha & Steven Roman
VBScript in a Nutshell
Paul Lomax & Ron Petrusha & Matt Childs