Web-based LAB color space tutorials

Dan Margulis is a big proponent of this color space. He recently wrote a book called Photoshop LAB Color: The Canyon Conundrum and Other Adventures in the Most Powerful Colorspace. I rarely use Lab myself, but I ran across this interesting thread on another forum some time ago.

It's not free but I can tell you that when I read Dan Margulis's Photoshop LAB Color, it changed the way I processed my shots. This was the best PS book I have read before or since. Here's an Amazong link. (link)

I'd third the recommendation for Dan's book.

Does Margulis use the same writing style he uses in "Professional Photoshop" (as if he is writing to amuse himself and others who know the subject matter inside and out already)? In all the many times I've read through "Professional Photoshop", I find I never actually learn anything, because I find him way too obtuse. But maybe that's me...

After reading Dan Margulis's book on LAB I routinely use it in my workflow. It has made an amazing difference in my nature and flower images and the basic adjustments are very quickly done in PS. I doubt that there is a "quickie" or shortcut way to learn this; I think you need to buy or borrow Dan's book, read it, and try LAB adjustments on some images.