Which famous author's publisher first pioneered the practice of using a consistent visual identity across book covers, creating one of literature's most recognizable author brands?

In the competitive world of publishing, strategic branding decisions can transform an author's career trajectory. This trivia question explores a pivotal moment in literary marketing history that revolutionized how authors and their works are presented to the public. Test your knowledge about the intersection of literature and brand development!

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Stephen King, whose name was displayed in larger font than the book title starting with 'Salem's Lot' in 1975, establishing the 'King brand' as a selling point
Agatha Christie, whose distinctive signature was incorporated into cover designs from 1930 onward to create reader recognition
J.K. Rowling, whose Harry Potter series featured the first standardized author logo that appeared on all book spines and promotional materials
Ernest Hemingway, whose publisher Scribner developed a minimal typographic style in 1952 that emphasized the author's name as a mark of literary quality