Professor Ian Hutchings has been GKN Professor of Manufacturing Engineering at the University of Cambridge since 2001. Before that, he was Reader in Tribology in the Department of Materials Science and Metallurgy. He has extensive experience in research and teaching on tribological topics. From 1998 to 2012, he was Editor-in-Chief of the international journal, Wear. He is the sole author of the first edition of 'Tribology: Friction and Wear of Engineering Materials' published in 1992, as well as numerous journal and conference papers. In 1994, he was awarded the Tribology Trust Silver Medal, in 2000 the Donald Julius Groen Prize by the Institution of Mechanical Engineers and in 2007 the Staudinger-Durrer Prize by ETH Zürich.Professor Philip Shipway has been Cripps Professor of Engineering Materials at the University of Nottingham since 2006, having been a member of the academic staff there since 1994. He has extensive experience in research and teaching on tribological topics, and has published numerous papers in the field. Since 2013, he has been Co-Editor-in-Chief for the international journal, Wear.