The , published by Elsevier Science in 2004, is a comprehensive six-volume reference work that consolidates the multidisciplinary field of energy studies. Edited by Cutler J. Cleveland , it features approximately 380 articles authored by 400 international experts. Key Content Areas

: Includes an extensive chronology of energy developments, international organization listings, and tables for physical property data and production figures.

: Detailed coverage of fossil fuels (oil, natural gas, coal), nuclear energy, and renewable/alternative sources (solar, wind, hydro).

: Explores the history of energy, energy economics, public policy, and global sustainability issues.

: Articles are arranged A–Z and typically include a glossary of terms, a "Defining Statement," and suggestions for further reading.

: Basics of energy, energy flows, and measurement models.

: Designed for academics, researchers, and students, as well as policy makers and business professionals.