The papers included in this issue of ECS Transactions were originally presented in the symposium ¿High Temperature Corrosion and Materials Chemistry 7¿, held during the PRiME 2008 joint international meeting of The Electrochemical Society and The Electrochemical Society of Japan, with the technical cosponsorship of the Japan Society of Applied Physics, the Korean Electrochemical Society, the Electrochemistry Division of the Royal Australian Chemical Institute, and the Chinese Society of Electrochemistry. This meeting was held in Honolulu, Hawaii, from October 12 to 17, 2008.

George Lai's 1990 book, High-Temperature Corrosion of Engineering Alloys, is recognized as authoritative and is frequently consulted and often cited by those in the industry. His new book, almost double in size with seven more chapters, addresses the new concerns, new technologies, and new materials available for those engaged in high-temperature applications. As we strive for energy efficiency, the realm of high-temperature environments is expanding and the need for information on high temperature materials applications was never greater. In addition to extensive expansion on most of the content of the original book, new topics include erosion and erosion-corrosion, low NOx combustion in coal-fired boilers, fluidized bed combustion, and the special demands of waste-to-energy boilers, waste incinerators, and black liquor recovery boilers in the pulp and paper industry. The corrosion induced by liquid metals is discussed and protection options are presented.

" ... papers presented at the Fourth International Symposium on High Temperature Corrosion and Materials Chemistry, held at the 203rd meeting of the Electrochemical Society, Inc., in Paris, France, April 30- May 2, 2003"--Preface.

This book brings together the experience of specialists on High Temperature Corrosion. The 43 papers discuss topics related to the high temperature corrosion of engineering alloys, ceramics and protective coatings. The papers will be a useful and dynamic tool for those wishing to increase their knowledge of High Temperature Corrosion, as well as providing a guide to recent literature in this field.