[PD] video texts

[Julian Peterson]

Greetings.

I've recently convinced a video editor friend of mine to lean PD/Gem  
so that we can create a duo in which I will generate audio in real- 
time while he edits video in real time.  I have quite a bit of  
experience working with PD for audio processing, but know little of  
Gem or video processing.  So while I can be a big help to him with  
the basics of PD, I'm not really able to teach him how to use Gem.

My question is, in addition to the tutorials available on  
puredata.org, is there a book or books (I'm thinking an equivalent to  
the Roads Computer Music Tutorial or Dodge/Jerse) that would be a  
useful reference for him (and me)?

Thanks for your help.

Julian Peterson