I’ve written a number of posts on this blog about the various series of Doctor Who books, and I’ve reviewed several individual titles on my GoodReads page. Suffice it to say, there are several different series, six at least – for the main, official, ranges. It is a lot to keep up with. And I’ve gathered information from several sources in order to publish blog posts listing the various series of books in both chronological release order, and in the order the books would take place within the Doctor Who universe (e.g. Doctor then Companion order). While looking for some other information about Doctor Who I found the following site which lists all the Doctor Who books, including the Target novelisations, and even books published by Big Finish (better known for their audio plays) and Telos Publishing.
Check it out!