Textbook in PDF format The authors are to be thanked for delivering a highly readable text which should assure a continued supply of practitioners of classical mechanics and its applications. Problem solving in physics is not simply a test of understanding, but an integral part of learning. This book contains complete step-by-step solutions for all exercise problems in Essential Classical Mechanics (C. Lee, H. Min, WSPC, 2018), with succinct chapter-by-chapter summaries of key concepts and formulas. The degree of difficulty with problems varies from quite simple to very challenging; but none too easy, as all problems in physics demand some subtlety of intuition. The emphasis of the book is not so much in acquainting students with various problem-solving techniques as in suggesting ways of thinking. For undergraduate and graduate students, as well as those involved in teaching classical mechanics, this book can be used as a supplementary text or as an independent study aid. In Three-Dimensional Space: Vector Description. Evolution in Time: Basic Elements of Newtonian Mechanics. One-Dimensional Motion. Motion of a Particle in Two or Three Dimensions. The Two-Body Problem, Collision and Many-Particle System. Gravitational Field Equations. Rigid Body Dynamics I. Elements of Fluid Mechanics. Motion in a Non-Inertial Reference Frame. Lagrangian Mechanics. Application of the Lagrangian Method: Small Oscillations. Rigid Body Dynamics II. Hamiltonian Mechanics