Books in the Dirty series, the spinoff Players series and the spinoff Vancity Villains series all take place in the same book world, affectionately known as the Dirtyverse among Jaine's readers. If you'd like to start at the very beginning, start with Dirty Like Me (Dirty #1).
The DEEP series is a standalone duet, meant to be read in order; the story begins in book 1 and ends in book 2.
