The reviewer below has no idea. I may not have taken his lecture class, but I could not have gotten a better professor than TAG in a seminar setting. His feedbacks on the essays are quite useful and he has reasonable expectation. In class, he listens carefully to everyone's comments and articulately provides his own thoughts on them. Yes, you have to work very hard to get an A, but that's pretty much expected in any class you'll take at Columbia.

Workload:

1/3 essays 1/3 exams 1/3 participation.