Warriors Series by Erin Hunter

I'm surprised no-one else has put this here yet! If you don't know, it's a long running series of books about four clans of cats that live, hunt, breath and die by the "warrior code" (like a set of laws). There's a fifth clan called Starclan and it's where all the loyal warriors go when they die, their version of heaven, and members of Starclan can share and walk in the dreams of the living clan cats. There is a lot of good storytelling, plot lines and a good mix of religion, ethics, morals etc. Who's all read the series so far? (Or at least parts of it)