For a more in-depth introduction to reinforcement learning, Sutton and Barto's book is available online:
http://webdocs.cs.ualberta.ca/~sutton/book/ebook/the-book.ht...
http://webdocs.cs.ualberta.ca/~sutton/book/ebook/the-book.ht...
[1] http://webdocs.cs.ualberta.ca/~sutton/book/the-book.html