The Academic Planning Environment expert system project is a knowledge-based system for advising and assisting university students in the planning of their studies towards an academic degree. This system has been implemented and tested at the Bar Ilan University. It has the capability of planning a program of courses which meets the student's remaining degree requirements and is sensitive to his preferences and strengths. It is able to give correct advice on such matters as prerequisites and exemptions. The system will interactively suggest alternatives, verify and accept the student's requests, and schedule the desired courses.