Doctor Who books, now where do I begin?!
I've got a pile of the old Target novelisations, from the original series, but I didn't start reading Doctor Who in earnest until Virgin started publishing their original novels in the early nineties (these were of a much more adult nature than the current incarnations, and featured novels by some now familiar names - Mark Gatiss, for example. They also featured the story by Paul Cornell that was later adapted him into the excellent third series two-parter Human Nature and The Family of Blood).
Of the current range I have only read Sting of the Zygons, which was okay, but I felt the Doctor was a bit OTT! I like the hardback format as well, but if you just want to read the books, keep your eye on The Book People catalogue, as they often sell ten of the stories for