still a university student, but rarely will I read the books (haha).
I second that, lol.
Secondly, if you are interested in magic, you shouldn't ask people what book to get. I say this because people often have very biased opinions. They read one or two books on a subject and they think they are experts on mentalism or whatever it may be. Heck, even 10 books is nothing. So I wouldn't trust the advice of 99% of the people on here (including me).
I always do a search for reviews on a book or a topic first. By doing this, you inform yourself and can make your own decisions about products based on 20, 30 or even 40 reviews. I would urge you to go to the magic cafe and look around there. You can type billet in the search and find 100's of topics on it. Then type in 13 steps to mentalism and you will also find 100s of topics.
Like I said, I wouldn't trust people's opinions on this site. Most are young kids who have been performing magic/mentalism for under a few years.
Check out the Cafe. It will be your saviour.