There are many resources but here's an interesting booklet.

How to Get Straight A's http://www.pranayama.org/read.html

"After studying aerospace engineering at the University of Michigan, classical guitar at the Manhattan School of Music, and religion at Columbia University, Magna Cum Laude graduate Sankara Saranam has devised not a method of study but a means to utilize our current educational system to one's greatest advantage. This short booklet is both fun to read and inspiring. Most importantly, however, any student can easily apply the simple techniques to insure better grades."