I re-read all the Heinlein juveniles recently as preparation for the Heinlein talk I gave at the Wellington con. With the exception of "Rocketship Galileo" (which I never liked anyway) they all held up well and they enthralled me just as much this time round as they did when I first read them.

But I gave my Andre Norton books away many years ago because a re-read of those that I started turned into a chore and I abandoned it.