I found a Russian store and website which supplies books about bread
during a visit to Moscow last month. The usual bookstores knew nothing,
but a search of the Moscow Yellow Pages and several phone calls led me
to the following:

http://www.deli.ru/index.html

http://www.deli.ru/books/

There is a bread institute in the same building as the bookstore, where
students study the subject. It's near the Krasnosel'skaya Metro
Station. This may be of interest to those who know Russian.