Photosynthesis is described as the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Among a multitude of books dedicated to several aspects of photosynthesis, this book is unique in bringing together an update on the latest insights about this most significant biological process in the biosphere. In addition to fueling all the life supporting activities and processes of all living creatures on the planet ranging from bacteria to humans, photosynthesis has also developed and maintained our life supporting oxygenic atmosphere. This book has been methodically compiled in a manner that it comprehensively elucidates the mechanisms, methodologies, applications as well as stress effects of photosynthesis by providing valuable information to the readers.