What was F. Scott Fitzgerald's first novel?

"This Side of Paradise" is the debut novel by F. Scott Fitzgerald, published in 1920. The book examines the lives and morality of post–World War I youth. Its protagonist Amory Blaine is an attractive student at Princeton University who dabbles in literature. The novel explores the theme of love warped by greed and status seeking, and takes its title from a line of Rupert Brooke's poem "Tiare Tahiti". The novel famously helped F. Scott Fitzgerald gain Zelda Sayre's hand in marriage; its publication was her condition of acceptance.

"This Side of Paradise" was published on March 26, 1920, with a first printing of 3,000 copies. The initial printing sold out in three days. On March 30, four days after publication and one day after selling out the first printing, Fitzgerald wired Zelda to come to New York and get married that weekend. Barely a week after publication, Zelda and Scott married in New York on April 3, 1920.