A journal following the history, design, construction and operation of Bernard Kempinski's O Scale model railroad depicting the U. S. Military Railroad (USMRR) Aquia-Falmouth line in 1863, and other model railroad projects.
For several years I have been recommending Daniel Chard's book Landscape Illusion as a great reference for people trying to learn how to paint realistic backdrops for model railroads. I just discovered that Daniel Chard has a wonderful website that displays some of his work. Check out this gallery of his older work, which I find especially relevant to backdrop painting. His book can be ordered from Amazon at a substantial discount.