Fluid mechanics is the study of fluid motion involving a rational method of approach based on general physical laws and consistent with the results of modern experimental study. There is hardly a branch of engineering that is not concerned with fluids or does not make use of them. The book comprises seventeen chapters covering: general concepts and basic relations; steady boundary layer; steady flow of frictionless fluid; and unsteady flow-fluid vibration. The book is intended for students preparing for an engineering degree and also for those covering a course suitable for the final examination of the professional engineering.