11/22/63 is a novel about a time-traveler named Jake Epping who attempts to travel back and stop the assassination of John Fitzgerald Kennedy.
This is a really great novel. Stephen King has created a fantastic and unique time travel mechanic, which really throws a different spin on what we usually run into in time travel stories, and even has a twist near the end that causes the reader along with the protagonist to change the way they had learned to look at things. The historical content is well-researched, immersive and detailed. King’s protagonist is a relatable and interesting character, and many of the other characters are splendidly fleshed-out and memorable.