11/22/63 by Stephen King

Everyone who was old enough to comprehend the President of the United States remembers where they were on November 22, 1963. 
But what if you could change it back? Stephen King’s new novel is about a man who travels back in time to do just that.
Jake Epping is a thirty-five-year-old high school English teacher who makes extra money teaching adults in the GED program. 
Jake’s friend Al, who can time travel, enlists Jake on an insane—and insanely possible—mission to try to prevent the Kennedy assassination. So begins Jake’s new life as George Amberson and his new world of Elvis and JFK, of big American cars and sock hops, of a troubled loner named Lee Harvey Oswald and a beautiful high school librarian named Sadie Dunhill, who becomes the love of Jake’s life – a life that transgresses all the normal rules of time.  A. Adams