Peer tutors hold leadership positions that often prepare them for life after their educational experience. Additionally, peer tutors lead their tutors to use their cognitive thinking skills. Finally, peer tutors help tutors in their development (p. 4). Lipsky cited Arthur Chickering's seven vectors of development (p. 4). Each vector highlights areas of effective social, intellectual, or personal development (p. 4-5). She said: “As a framework for explaining the evolution of student behaviors and attitudes, the Chickering Model is useful in your role as a peer educator. Note that the seven vectors overlap and are not linear in nature” (p. 4). In the second chapter, Lipsky explains how learning occurs. This is a key element of the book because learning is a science that involves changing student behavior. Learning is interactive and an ongoing activity in which everyone participates as a whole. Learning happens based on past experiences and cognitive thinking. Lipsky breaks down learning into three stages for tutors and informs the peer tutor when to intervene (pp. 16-17), all related to the learning process. Basically, peer educators learn from their tutors and students learn from their peers.