So to get this out of the way: yes, this book is written by the marvelous Krysten Ritter.  I really like her as an actress and am a huge fan of Jessica Jones. I will be very honest, I was very curious about this book based on who she is -- I'm not sure it's one I would have picked up on my own in a bookstore.  However, while I don’t read a lot of thrillers, it’s a genre I’d love to get into and this seemed like a great fit.