The material in the book is appropriate for one or two courses in Machine Elements and/or Mechanical Engineering Design. The material is intended for students who have passed first and second year basic courses in engineering physics, engineering mechanics and engineering materials science.The book is organized into 13 separate chapters, which in principle can be read independently. The covered subjects are: tolerances, springs, bearings, shafts, shaft-hub connections, threaded fasteners (bolts), couplings, clutches, brakes, belt drives, 2D Joint Kinematics gear geometry and strength of gears.