The book "Fundamentals of Fluid Film Lubrication" by Mihir Kumar Ghosh, Bankim Chandra Majumdar, and Mihir Sarangi provides a comprehensive theoretical background for students and practicing engineers in the field of tribology, specifically focusing on fluid film lubrication. The authors, who are experienced professors and researchers in mechanical engineering, cover a wide range of topics related to lubrication, including the history of lubrication, friction, and wear, as well as various regimes of lubrication such as hydrodynamic, hydrostatic, elastohydrodynamic, and squeeze film lubrication. The book also delves into the mechanics of lubricant films, finite bearings, thermohydrodynamic analysis, design of hydrodynamic bearings, dynamics of fluid film bearings, externally pressurized lubrication, fluid inertia effects, turbulence, gas-lubricated bearings, rolling contacts, elastohydrodynamic lubrication, and vibration analysis with lubricated ball bearings. Additionally, it discusses thermal effects in rolling–sliding contacts and provides an overview of micro and nano tribology, biotribology, and the economic impact of tribology. The book aims to fill a gap in the literature by offering advanced coverage of fluid film lubrication, making it a valuable resource for both academic and industrial applications.The book "Fundamentals of Fluid Film Lubrication" by Mihir Kumar Ghosh, Bankim Chandra Majumdar, and Mihir Sarangi provides a comprehensive theoretical background for students and practicing engineers in the field of tribology, specifically focusing on fluid film lubrication. The authors, who are experienced professors and researchers in mechanical engineering, cover a wide range of topics related to lubrication, including the history of lubrication, friction, and wear, as well as various regimes of lubrication such as hydrodynamic, hydrostatic, elastohydrodynamic, and squeeze film lubrication. The book also delves into the mechanics of lubricant films, finite bearings, thermohydrodynamic analysis, design of hydrodynamic bearings, dynamics of fluid film bearings, externally pressurized lubrication, fluid inertia effects, turbulence, gas-lubricated bearings, rolling contacts, elastohydrodynamic lubrication, and vibration analysis with lubricated ball bearings. Additionally, it discusses thermal effects in rolling–sliding contacts and provides an overview of micro and nano tribology, biotribology, and the economic impact of tribology. The book aims to fill a gap in the literature by offering advanced coverage of fluid film lubrication, making it a valuable resource for both academic and industrial applications.