It may have been mentioned elsewhere on the forum, but if not - there's an interesting documentary called "How to Make a Book with Steidl" that is available for download here:
It's got scenes with Robert Adams, Martin Parr, Ed Ruscha and other photographers.
From the site:
"In How To Make A Book With Steidl, filmmakers Gereon Wetzel and Joerg Adolph observe the work of internationally acclaimed German publisher Gerhard Steidl, one of the few remaining publishers in today's increasingly digital world to maintain an unwavering commitment to the quality and craftsmanship of the printed book."
Worth a look.