Quantum Theory, Groups and
Representations:
An Introduction
Peter Woit
Published November 2017 by
Springer.
The Springer webpage for the book is here.
The SpringerLink page is here
(if your institution is a Springer subscriber, this should give you
electronic access to the book, as well as the possibility to buy a
$24.99 softcover version). A web-page of errata is here.
I'm starting to revise and expand a bit the book, you can access the
latest version of that revision here.
For more information, see some
blog entries.
For a review of the book, see Woit's Way.