"Wartime Books:  Wartime shortage of pulp, manpower, and transportation has produced a severe shortage of paper. In compliance with orders of the War Production Board, wartime books are printed on lighter-weight paper. This reduces thickness and weight. New books have more words to the page and smaller margins. This reduces the number of pages without reducing reading content. 

  Thinner books save paper, critical copper, and other metals. They help also to avoid wartime increases in book prices. Wartime books appear to be smaller, but their content has not been cut. They are complete. The only change is in appearance.'  P.4 The Christ of the American Road.