“Jumper was one of the great sf novels of the 1990s--one of those rare books that can be read either as a young adult novel or a book for adults, like Ender's Game or vintage Heinlein. […] Now there's a sequel to Jumper, called Reflex, and last night I ended up burning about two hours' worth of jealously hoarded sleep-time to finish this thing. […] This kind of book doesn't come along all that often, and when it does, it's cause for celebration--run, don't walk.” —Cory Doctorow

“Gould proves once again that in the hands of a wonderful, perceptive writer, there is no such thing as an old idea. What sets Jumper apart from other novels that dip back into the well of the masters is that Gould brings his own keen empathy and rigorous intelligence to the story, exploring what the ability to ‘jump' means in the life of this particular young man…. This is a book that you won't want to miss. It reminded me of why I first came to love science fiction, and yet I didn't have to be twelve again to have a great time reading it.” —Orson Scott Card

“Jumper is very good indeed... in its concept and execution it harks back to a time in SF which could probably teach any of the new writers a thing or two about simplicity--of concept and execution.... All in all a very satisfying novel that answers for you the age old question, ‘What if I could...?'” —Isaac Asimov's Science Fiction Magazine