Nootropics have allowed me to pull my grade point average from a 3.2 to a 4.0. Obviously none of these drugs will completely overhaul your intellect, but they can make a huge difference if you are healthy and simply lack the ability to concentrate on your work. Nootropics simply offer that little kick of energy and concentration that makes all the difference.
As always, be careful. Some nootropics can be dangerous, most however are harmless. Just be sure to check medline and rec.drugs.smart to make sure there are no really dangerous side effects from whatever it is your considering taking. If you feel you aren't ready check the safety of things, and accept perhaps a bit of risk, then this book isn't for you.
And remember, Nootropics don't offer a "free lunch"; you'll find yourself sleeping a bit more heavily after having really exerted that mental muscle that is your brain!