I have to say, learning the compositor from tutorials is not easy. Every other aspect of Blender I am learning nicely, but the compositor is tricky. People say what to do in the compositor and I do it, but it’s rarely taught in a good way.
So I’d like ask for tutorials that you know does teach the use of the compositor well.
Agreed.
Many tutorials tell where to connect the nodes. But not many tell you why.
Many of Andrew prices tutorials have good advice on compositing. If you haven’t checked it out already its… www.blenderguru.com
Are you making still images, animations, or compositing live-action? Each one presents some unique problems in compositing, although they will also share many of the techniques.
Ron Brinkmann’s “Art and Science of Digital Compositing” is a great application-agnostic guide to compositing.
You might also want to look at Jeremy Birn’s “Digital Lighting and Rendering”. It has a couple of decent chapters on render layers and compositing.
On Blender Cookie everything from Bartek Skorupa is great. There are some free ones and a bigger Citizen Tutorial.
My favorite book on compositing is “Digital Compositing for Film and Video” by Steve Wright.