Students are able to sign up for a maximum of three affinity groups.  The affinity groups have been created based on the expertise of our mentors, the history of first year student interests, as well as the particular interest areas of the incoming class. Mentors for the group are selected based on professional experience that is in line with the career interests of the students in the group. Where possible, we try to recruit mentors who have varied backgrounds. For example, in an affinity group based on energy and environmental policy there may be mentors who have worked in government on environmental issues, others who have worked for international nonprofits, and others who work for research organizations that focus on environmental issues.