Schlock Mercenaries
Another reason why you should read Schlock Mercenary is the incredible amount of science fiction trivia you get:
[on fusion candles] Larry Niven suggested that such an arrangement could be used to move rocky worlds from one orbit to another, and he wrote a novel entitled A World Out of Time in which the Earth was moved with the help of giant candle they'd shoved up Uranus. I'm not making this up.
Enlightening, I would say.