I haven't read it yet -- and don't know when I'll get a chance to, with everything else going on right now -- but knowing Scott and knowing his work, I feel pretty comfortable suggesting you go check it out. You can get a taste of it by downloading the Learn More , Study Less preview [4] (pdf link), or by checking out the post Scott guest-posted at Zen Habits, How to Learn More and Study Less [5].
And if you're going to be at Zen Habits anyway, it would probably be a good thing to pick up Leo Babauta's excellent Zen to Done [6] (which I've read -- you can read my review [7] at lifehack.org) and his new ebook, Zen Habits Handbook for Life [8], which I haven't read. But this is Leo Babauta we're talking about here, which means it's virtually guaranteed to be better than anything else you've read this year.