Why The 1930s, you question? The invention of Penguin paperback books, naturally! This new mass current market expected book covers to generally be both of those quick to acknowledge and simple to reproduce. Design by Keith Hayes; illustration by Rokas Aleliunas I like how bold, evocative, and graphic this cover https://selfpublishingkindle.finance.blog/2025/01/30/4-things-to-do-when-you-begin-a-self-publishing-journey/