Power plant engineering is a vital field that deals with the design, construction, and operation of power plants, which are crucial for generating electricity and meeting the ever-increasing energy demands of modern society. One of the most widely used textbooks in this field is "Power Plant Engineering" by P K Nag. In this article, we will provide an overview of the book, its contents, and its significance in the field of power plant engineering. We will also discuss the availability of the PDF version of the book and provide information on how to access it.