"Elmer Gentry" is a satirical novel by the American writer Sinclair Lewis, which was published in 1926. The main character, Elmer Gentry, is a charismatic preacher who uses religion to further his own self-serving ends. He is a shining example of hypocrisy and godlessness in a religious world where money and power are of great importance. Through the prism of the life of Elmer Gentry, the author reveals the problems of society, sharply ridiculing its shortcomings and hypocrisy. This book invites readers to think about whether they really believe what they are trying to impose on them, and whether they should blindly trust leaders who seek their own benefits under the cloak of faith.