This comprehensive and student friendly text gives a clear analysis of the fundamental aspects of the subject, starting from surface behaviour and contact phenomenon of interfacing surface. The book elaborates the types, specification and standardization and measurement of surface irregularities in evaluating triboproperties in relation to friction, lubrication and wear. Besides, it also discusses various lubricants and their selection. The text reflects the rich and varied experience of the authors in teaching, research and industry and provides real life cases encountered by them. This practice-oriented book, which contains a large number of worked-out examples, exercises and other pedagogic features, is intended as a text for undergraduate and postgraduate students of production, mechanical and design engineering. It can also be profitably used as a reference by practising engineers.