This book describe the importance of Guru Granth Sahib. Guru Granth Sahib is known as the Sikh Scripture. In fact, it is scripture of all religions or Scripture of scriptures. The Saloks (verses) in Guru Granth Sahib were written by Six Sikh Gurus – Guru Nanak Sahib, Guru Angad Sahib, Guru Amar Das Sahib, Guru Ram Das Sahib, Guru Arjan Sahib and Guru Teg Bahadur Sahib. Besides Guru Sahib, It consists of Hymns of great Spiritual Personality like Bhagat Baba Ravidas, Bhagat Kabir, Bhagat Namdev, Trilochan, Dhanna, Beni, Jaidev, Surdas, Sain, Pipa, Ramanand, Parmanand, Baba Farid, and 11 Bhatt poets. The hymns of Guru Granth Sahib have been compased to be sung in 31 Ragas.