Edward Moor Trent, who was born in England, gained his M.Sc., Ph.D. and D.Met. in Metallurgy at Sheffield University. At Wickman/Wimet in Coventry, England, he was the first to describe the diffusion wear mechanisms in tungsten-carbide-cobalt cutting tools. This work was the foundation for new grades of carbide for cutting steels, and subsequently for the development of coated cutting tools. He was later a Senior Lecturer in the Industrial Metallurgy Department at Birmingham University. He was awarded the "Hadfield Medal" by the Iron and Steel Institute in recognition of his contributions to metallurgy. Paul Kenneth Wright, who was born in England and now resides in Berkeley, California, is professor of Mechanical Engineering and co-chairman of the Management of Technology Program at the University of California, Berkeley School of Engineering. He is also the Associate Dean for Distance Learning and Instructional Technology.Trent, E. M. is the author of 'Metal Cutting', published 2000 under ISBN 9780750670692 and ISBN 075067069X.