The rate of increase caused to a chemical reaction through the addition of another substance is known as catalysis. This book discusses the principles of the process of catalysis. It is a significant process in many industries such as the petroleum industry, chemical manufacturing and the food processing industries. This book unravels the recent studies in this field. Chapters in this book delve into the scientific processes as well as industrial applications of catalysis. It includes contributions of experts and scientists which will provide innovative insights into this field. The readers would gain knowledge that would broaden their perspective about catalysis.