Are you interested in learning about the different sources of energy and how they can be used for various purposes? Do you want to know more about the latest developments and trends in the field of energy engineering? If yes, then you might want to read Non-Conventional Energy Sources and Utilisation by RK Rajput. This is a textbook that covers various topics on non-conventional renewable and conventional energy and systems. In this article, we will give you an overview of the book, its contents, features, and benefits. We will also tell you how to download the PDF version of the book for free.