This Second Edition of this practical training guide is for the thousands of college students who serve as leaders, tutors, counselors, and advisors for their peers. It continues the tradition of the first edition--considered the standard for training peer educators--by beginning with a fundamental discussion on student growth and development, providing updates on current research, and providing learning objectives and exercises to help prepare peer educators for such tasks as tutoring, student orientation, residence hall advising, crisis intervention, coaching, and more.