If you're already on book 3, there's not much more to say.

It's more or less more of the same, more exposition, more world building, more secrets, more character building, and a continuation of the so-called Prophecies.

This book finally gives some other characters introduced earlier some spotlight, most notably Mat, which was great to finally see what he was capable of, although admittedly he did feel like a bit of a Mary Sue, but perhaps there will be explanations for that in the future.