I was so impressed with the YouTube TV series Impulse, I went and got all the Jumper novels out of the library. The TV show Impulse has very little in common with the novel. I'm on the last novel now, Griffin's Story. This novel fills in some of the backstory of the Film Jumper. which by the way is only based slightly on the novel Jumper. Although I can recommend the TV show Impulse (in fact, I hope they have a season 2), I can only give a half-hearted recommendation of the novels. For sure, entertaining, and as an SF fan, I enjoyed the author's ability in taking a well-trod path and making it both familiar and new. But at its core, it's a YA series and better appreciated by teens. But the fact that they are YA novels made them for fast and fun summer reads.