Competition for energy resources worldwide will almost certainly increase because of population growth and economic expansion, especially in countries with large populations like China and India. In addition, environmental concerns with the use of certain energy sources add a complicating factor to decisions about energy use. Therefore there is likely to be an increased commitment around the world to invest in energy systems.The World Scientific Handbook of Energy will provide comprehensive, reliable and timely sets of data on energy resources and uses; its concept is to gather in one publication a brief description of the current state-of-the-art on the wide variety of energy resources, including data on resource availability worldwide and at different cost levels. The end use of energy in transportation, residential and industrial areas will be outlined, and energy storage, conservation and the impact on the environment, included. Experts in these various areas will provide relevant data for further exploration and research.