From 1940 to 1955, American society and culture underwent dramatic changes, including the introduction of the Comics Code in October 1954, which heavily impacted comic books. The Code aimed to moderate comic content in response to public opinion, including such topics as juvenile delinquency, wartime sentiment, teenage sex, drugs, violent crime, and more. While compliance was technically voluntary, most publishers followed its strict rules. Those who didn't faced ruin when wholesalers and distributors refused to handle noncompliant comics, returning them unopened to publishers, who soon self-destructed. Comic Book Apocalypse! explores this downfall through 500 examples of pre-Code cover art, highlighting why some deemed the Code necessary. The book also examines who decided what content was acceptable, demonstrating how pre-Code comics reflect the larger story of 1950s America.