Great little book by a Stanford philosophy professor that sprung out of an essay he wrote (see http://www.structuredprocrastination.com for what essentially became the first chapter). He explores how a better understanding of your own tendencies can not only help you feel a bit better about yourself, but can also be used to your own advantage -- using "structured procrastination" to outsmart yourself. Encouraging, helpful, funny, and relevant, with lots of examples from academia. (I think probably 80% of grad students would benefit from reading this... and the other 20% would benefit from understanding their colleagues better. :)