David Kennedy is a Professor of Biological Psychology and the Director of the Brain, Performance and Nutrition Research Centre at Northumbria University in the UK. His own research centers around the effects of nutritional interventions, including plant derived chemicals, on human brain function.

"This is an impressive book. ... I recommend reading it -- the writing is clear, lucid, and engaging. If you don't believe me, just read the first two paragraphs -- you will be hooked!" -- Dale Walters, Scotland's Rural College, Edinburgh

"This book is a scholarly masterpiece of David O. Kennedy. If you want to understand the pharmacological mode of action of the psychoactive natural products and their role in human history, Plants and the Human Brain, is fascinating read." -- Michael Wink, Professor of Pharmaceutical Biology, Heidelberg University, Germany

"Overall, this book is valuable for library collections that serve the broad range of study related to human behavior -- health sciences, criminology, psychology, anthropology, biology, and chemistry. For plant biology collections, this book is a jewel. ... Highly recommended." --Choice

"I enjoyed reading this book and learnt much from it. It deserves to be read widely as there must be few people who have the breadth of knowledge themselves which is found in it and for such it will enhance their application of this fascinating topic." --Peter Houghton, Journal of Ethnopharmacology

"The book is extremely well referenced; therefore, not only is the text a treasure of amazing scientific discourses, but it is also an excellent factual resource that enables the reader to go beyond the book's scope. The exciting debate about the link between plants and humans continutes, and Kennedy has provided a fascinating new synthesis and exciting new insights based on a critical assesment of biochemical, pharmacological, and phytochemical evidence." --BioScience

"[A] landmark contribution to psychopharmacology and human health. ... Students, teachers, and researchers of herbal medicine, biochemistry and phytochemistry, nutrition, psychopharmacology, ecology, and entomology should all avail themselves of the opportunity and pleasure to read this beautifully written book." --HerbalGram: The Journal of the American Botanical Council

"[This book] is extensively and rationally referenced, well-indexed, and impeccably presented. More than an impressive collection of facts, the author has succeeded brilliantly in integrating the evidence on the foundation of a clear premise and building each successive layer of evidence to support it with compelling facts and reasoned synergistic examples. Much of science today is effective in dissecting mechanisms and explaining how things work, but it is rarely so brilliant in its exposition or demonstrating why things are as they are. Students, teachers, and researchers of herbal medicine, biochemistry and phytochemistry, nutrition, psychomarmacology, ecology, and entomology should all avail themselves of the opportunity and pleasure to read this beautifully written book." --HerbalGram

"Kennedy's Plants and the human brain is not only a work of considerable erudition and obvious scholarship, it is also a true labour of love. ... It is a terrific tome and, since it is also well written, a thoroughly good read." --Annals of Botany Blog