Recommand a good book on VBA....

I have some background on VB. Now I need to do some VBA programming in VISIO.

Please recommand any good books on VBA, where I can learn the difference in implementation bwt VB and VBA.
Hopefully the book is not a replica of the MS Help.

Thanks in advance!!

The Microsoft book was best for me...it has lots of useful procedures that can be used in any project.

I bought This book, and I have never not found what I needed in it.

Very awesome book.

~~~Edited to add~~~
Then again, that is Excel based... So, maybe not..