ASPRS and RAND published Commercial Observation Satellites: At the Leading Edge of Global Transparency, by John C. Baker, Kevin M. O’Connell and Ray A. Williamson, editors. This book analyzes the pros and cons presented by new observation satellites. The authors examine policy issues, provide a survey of satellite remote sensing programs, and supply case studies on international security applications. (ASPRS, Bethesda, Md., RAND, Santa Monica, Calif.)