"The LaTeX Companion" proved very useful when I wrote my thesis. [http://www.amazon.com/LaTeX-Companion-Techniques-Computer-Typesetting/dp/0201362996/ref=sr_1_3

"The LaTeX Companion" proved very useful when I wrote my thesis. [http://www.amazon.com/LaTeX-Companion-Techniques-Computer-Typesetting/dp/0201362996/ref=sr_1_3?s=books&ie=UTF8&qid=1332934615&sr=1-3 http://www.amazon.com/LaTeX-Companion-Techniques-Computer-Ty...]