For anyone looking to learn more, I would strongly recommend some of the video tutorials available at http://www.theory11.com/tricks (some are free, many are cheap, and majority can be streamed online)
Specifically look for anything you can find by Jason England. That man is a modern master of card sleights if their ever was one, and over the years he has created some great walkthroughs for techniques from the Faro Shuffle to Palming to Dice Switching.
(Full disclosure, I have done some work for this site, but it's legitimately one of the greatest resources for learning more about this topic that I know of)
I do think for a serious beginner right now, though, Giobbi is probably more appropriate. I would argue he offers considerably more detail on subtleties of handling and overall performance and in more accessible language which is important. It's kind of like you're getting the best of Erdnase, Hugard, Braue and so many of the greats who came after them in the 20th century distilled down to best practices with Giobbi's course. There's nothing wrong with taking it slow either. You don't have to get all the volumes at once. In fact, it would be better to spend a long time mastering each before buying and moving on to the next.
And as others have mentioned, if you do go to Erdnase (or get sufficiently hooked to just want a copy), there is both the Annotated Erdnase by Darwin Ortiz (which is pretty readily available), as well as Dai Vernon's Revelation book (not to be confused with the 'Revelations' series of DVDs), his own annotations on Erdnase ( http://www.mcmagicwords.com/books_revelation.html ).
There was also a recent documentary on Ricky Jay (available on Netflix) called Deceptive Practice :
Knowing how hard you can throw a card, I feel like I'm lucky that me and my brothers escaped childhood with our eyesight intact.
Cut the deck perfectly in half. This is easier than it sounds.
Pincer the halves at the end, and push the two other ends together.
Push harder, smoothly, and rotate your wrists opposite slightly. The two halves will fan into each other. With practice you can perform 2 (4?) perfect shuffles and end up with the cards in the same order you started in.
Both are absolutely excellent.