This book discusses the main concepts and principles of Mechanics in a clear and detailed manner. Mechanics is considered to be the core of Physics. The first chapter provides the reader with the mathematical background required for this field of study. This is followed by several topics that include: kinematics, Newton's laws, energy and momentum, common forces, and the different types of motion and collisions. In addition, a whole chapter has been dedicated to help show the reader how to apply the different laws and concepts on a system of particles. The last two chapters discuss Newton's law of gravity and oscillatory motion. A vast amount of derivations and proofs of theorems are available in this book. This is in addition to many examples and problems to ensure that the reader understands the subject in sufficient depth. This book will prove useful for undergraduate students majoring in physics or other science and engineering disciplines. It can also serve as a reference for more advanced levels.