There's no book on it, but some project books have a chapter or two.
However, there is a free downloadable paper on programming Project 98 that
is just as relevant for Project 2003. There's a link somewhere on www.mvps.org/project
Yep, what Rod said. You can find the Proj98 and Proj2002 vba training links
on my blog
Lower left side under VBA links. http://zo-d.com/blog
There are also a few short articles I have posted there which cover some of
the basics.