Which famous 20th century American author served as a brand ambassador for Pan American Airways, appearing in their 1950s advertisements with the tagline "Pan Am makes the going great"?

Throughout literary history, famous authors have sometimes served as brand ambassadors for products they genuinely loved or were paid to endorse. These partnerships between literature and commerce reveal fascinating intersections of art and marketing, sometimes influencing the author's work or public persona. Test your knowledge about these unique literary-commercial relationships that have shaped both literary culture and brand histories.

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Ernest Hemingway
F. Scott Fitzgerald
John Steinbeck
William Faulkner