Why the 1930s, you inquire? The invention of Penguin paperback books, of course! This new mass market required book covers to be both quick to acknowledge and simple to reproduce. In reaction, Fujita “altered the color to burgundy and extra a funereal black border to the jacket.” Cover design by https://www.scribd.com/document/822221389/How-to-Become-a-Good-Children-s-Book-Writer