Forests are an important source of a rich variety of benefits sought by nearly everyone in the world. Forests are a far-reaching presence on worldwide landscapes. They make considerable contributions to the social and economic fabric of many societies. Further, many citizens (or their agents) have an intense interest in the ways forests throughout the world are used and managed. The importance of forests is commonly identified by a number of measures, including area of land covered by forest vegetation, extent of forest-based employment and income, and public recognition of important forests resources issues.