In this paper, the authors provide an overview of the research literature on resiliency in adolescents. We explore the history of resiliency as it relates to the health and well-being of adolescents, identify common themes, provide a description of resilient youth, and introduce the developmental assets framework. To provide counsellors with an increased understanding of the concept of resiliency as well as to encourage the application of resiliency to practice, a visual model is provided from which counsellors can organize "resiliency" as a construct. The role of parents, families, schools, communities, and non-family adults are discussed with regard to asset development. Lastly, we examine developmental assets in relation to counselling practice, including how counsellors can effectively incorporate the concept of resiliency into their professional practice in working with adolescents.