The book entitled "Nanotechnology advancement in herbal drugs" deals with new research and innovation in herbal drugs using nanotechnology that can result in improved results on various diseases without any side effects. It consists of the 7 chapters which include the introduction of herbal nanotechnology, herbs used in nanotechnology, herbal nanotechnology for cancer, asthma, inflammation, cosmetics and diabetes. This book is motivated from the scarcity of relevant contents on nanoscience and technology and unavailability of course curriculum comprehensively in one book. This book mainly aims in guiding the undergraduate, graduate and postgraduate students and overcoming the obstacles faced by them in theoretical aspects as well as the practical aspects of Herbal Nanotechnology. The major objective of this book is to present the information in a lucid condensed manner to fulfil the requirements of students. We have made a humble attempt to present this book in a simple manner and have taken all humanly possible care to avoid mistakes. Still, we cannot claim absolute perfection. Students and teachers are judge of this book.