Two characters with DID (well, MPD; the book's old and outdated), one with awareness and having been in therapy for years, one with no idea what's going on.
Incredibly well-written. I don't really know what exactly to say about it or what makes it so well-written but it was just so...normal and relatable and realistic to us it was fucking fantastic.
I love it.
(ps it's quite triggery in parts, obviously, csa etc, but extra trigger warning for systems reading this regarding integration. Though it's done quite well, tbh, and is painted as a bad thing/not the ideal outcome of therapy for most systems.)