This book delves into several topics related to photosynthesis. It is the diversity of topics that makes this book special. The authors have also included the latest developments in the field. The book contains chapters in diverse areas of "photosynthesis" including the latest trends in the field. The diversity of topics serves to generate inquisitiveness in the reader e.g. there are three chapters on stress (drought, light and nitric oxide) that will guide a UG/PG student into reading more about stresses e.g. salt, pesticides, heat, oxidant, toxic gases etc. and compare the molecular mechanisms. Furthermore, we have included chapters on the effect of various modifiers of CHL biosynthesis, nanomaterials, omics and senescence and the use of technology to enhance photosynthesis. The book is in sync with the UN-Sustainable Developmental Goals.