One of the most important form of renewable energy is solar energy. It refers to the science of producing energy from rays of sun by using technologies like solar panels, solar architecture, photovoltaics, artificial photosynthesis and solar heating, etc. It is used to control the growing pollution and depletion of natural resources. The aim of this book is to present the topic of solar energy in great detail and to provide in-depth information about its various uses. The topics introduced in this extensive text are of utmost significance and appropriate of learning about the most basic to most complex concepts related to this topic. Different approaches, evaluations and methodologies and advanced studies have been included in it. As this field is emerging at a rapid pace, the contents of this textbook will help the readers understand the modern concepts and applications of the subject.