[chrispenycate]

The two "Mars" books, the moon books, empire builders and Jupiter, and I think Venus, but I've just spotted that I omitted buying "Titan" because I have another book with the same title (two, actually) and I got confused.
Plus a fair number more of his not in the same series.
And I don't know why I went off the asteroid series; normally it's one of my points of interest, but after the precipice and the rock rats I sort of tapered off. Perhaps I'll reread them and remember why.