I just finished reading Heaven is for Real: A Little Boy's Astounding Story of His Trip to Heaven and Back. This readable and engaging book tells the true story of a little boy's near death experience during an appendectomy. Several months after his surgery, three-year-old Colton began telling his parents bits and pieces of what he saw in heaven. Many of the anecdotes defy explanation. For instance, Colton told his parents that he had a sister in heaven. His mother had had a miscarriage but hadn't told Colton. You can see the books I've read so far (starting in 2011) here.