Photosynthesis is the life-sustaining process used by plants and other organisms that converts light energy into chemical energy. This energy is later released to fuel the activities of organisms. Photosynthesis is responsible for the production and maintenance of oxygen content in the Earth's atmosphere. During this process, the energy containing carbohydrate molecules such as sugars, are synthesized from carbon dioxide and water. All of the organic compounds and most of the energy required for life on earth are supplied by photosynthesis. It begins with the absorption of energy from light by proteins containing chlorophyll pigments. The organisms which can perform photosynthesis, such as plants and algae, are called photoautotrophs. The topics included in this book on photosynthesis are of utmost significance and bound to provide incredible insights to readers. It covers in detail some existent theories and innovative concepts revolving around this area of study. Those in search of information to further their knowledge will be greatly assisted by this book.