Name: Citizen of the galaxy
ISBN: 0575035692

Robert A. Heinlein

Citizen of the galaxy

A youth who has known only the primitive life of a galaxy slave is purchased by a beggar who turns out to be a man with many extracurricular activities.

Citizen of the Galaxy

Daryl Houston

Kind of neat at first (some of the world building on the Sisu in particular was neat), but it turned into a bit of a snooze and felt kind of half-formed. Read this aloud to the kids, who felt similarly meh about it.