Hinduism is unique because, not only it is the most ancient continuously practiced religion, but also has the most amount of sacred material than any other religion. The sacred Hindu scriptures are placed into three categories, namely Shruti, Smriti, and a subsidiary category. Shruti means what is heard. They contain the ever present divine revelations. Shruti scriptures are the Vedas which consist of the samhita parts of Rigveda, Yajurveda, Samaveda, and Atharvaveda, and the appendages of the Vedas, namely, Brahmanas, Aranyakas, and the Upanishads. Shruti texts are the most sacred Hindu scriptures. A brief review of the Shruti scriptures is given in this present book.In this revised (October 2020) fifth edition book, a new article has been included, and many of the articles have been modified and improved.