First of all, Heiphetz is an interesting person herself. She is always very energetic, ambitious and enjoying what she is teaching. I have never seen such an enthusiastic prof at Columbia. The class material is very interesting and applicable to the daily life. It even covers relationships. She is a very successful prof overall. She is always very welcoming for questions, even not related to the subject directly. The exams are very straight-forward and mostly expecting you to explain the theory thoroughly and provide examples.