Abstract
Abstract In the introductory chapter of this handbook, core aspects of prevention science and practice will be presented. Included in this presentation are definitions of prevention; how prevention has been conceptualized within the field of psychology; why prevention is necessary; why counseling psychologists are particularly well suited to engage in prevention activities; the benefits of including mental health prevention as part of a larger wellness agenda; and how prevention is part of a commitment to social justice and cultural relevance. It is hoped that presenting these ideas will help orient the reader to what is to come in the remaining chapters as well as ground the volume in a common language and philosophical base.