Just fun about PhD study

The illustrated guide to a Ph.D.
http://matt.might.net/articles/phd-school-in-pictures/

10 easy ways to fail a Ph.D.
http://matt.might.net/articles/ways-to-fail-a-phd/

Useful Things to Know About Ph. D. Thesis Research

http://www.eecs.harvard.edu/~htk/thesis.htm

Very good advices about PhD research.

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Cheers,
Vu