VB and VBA in a Nutshell is mistitled.
It is really a VB book.
For serious VBA work, one must also get the Ken Getz VBA Handbook stuff, the
MSFT Press "programmer's guide" (there are editions for Office 97, 2000 and
2002), and a good VB 6 book such as Gary Cornell's VB 6 from the Ground Up.
The online stuff is, IMHO, useful only AFTER one gets up to speed.