Who is the author of "The Secret Life of Walter Mitty"?

The author of "The Secret Life of Walter Mitty" is indeed James Thurber. This short story, first published in The New Yorker in 1939, features a daydreaming protagonist who escapes his mundane life through vivid fantasies of adventure and heroism. Thurber's innovative use of humor and his exploration of the contrast between imagination and reality contribute significantly to the story's lasting impact and popularity. His style often blended wit with poignant observations about human nature, making his work distinctively engaging.

The other authors mentioned have their own notable contributions to literature but are not connected to this specific story. Harper Lee is famously known for "To Kill a Mockingbird," Ray Bradbury is recognized for "Fahrenheit 451," and Mark Twain is celebrated for works like "The Adventures of Huckleberry Finn." Each of these authors has a unique voice and style, but it is Thurber's unique take on the everyday life of Walter Mitty that defines the narrative in question.