These two publications offer a wealth of information on how to plan and design interpretive facilities and services. Volume one reviews the basic principles of interpretation as well as the interpretive planning process, planning and designing interpretive trails and tours, planning interpretive exhibits and tips for conducting engaging interpretive programs. Volume two offers a wealth of information on different approaches to interpretative planning along with specific case studies to illustrate different approaches. Tpgether, this comprehensive set provides details on planning and designing interpretive exhibits, graphics standards for outdoor panels, and ideas for marketing interpretive programs, along with helpful evaluation tools.