't Hooft's guide is really fantastic as a complement to an undergraduate curriculum. http://www.staff.science.uu.nl/~001/goodtheorist/index.html http://www.sta

't Hooft's guide is really fantastic as a complement to an undergraduate curriculum. http://www.staff.science.uu.nl/~001/goodtheorist/index.html http://www.staff.science.uu.nl/~001/goodtheorist/index.html Edit: Looks like this has already been posted. But it's so good it needs another bump.