Shamsher Singh Puri is a civil engineer by profession. After having worked in his chosen profession he migrated to U.S.A. in 1947. After working as a well reputed construction engineer for 14 years in his adopted country he voluntarily retired and absorbed himself in the study of Sikh scriptures. Love of Gurbani being strong in his inheritance he had opportunity, means and mind to pursue the study of Gurbani and write about the message of Guru Nanak. Hence many of his articles were published in reputed journals of U.K., U.S.A. and India. These articles were widely applauded by the readers. Encouraged by the publication of his articles, he wrote his first book Prayer which was published in 1995. After that he authored Handbook of Sikh Theology, Bhagats and Saints of Guru Granth Sahib, Happy Marriage-the Sikh Perspective, Spiritual Sayings, Sikh Philosophy and Spiritual life, Ab to Jaag Masafir Pyare (Punjabi), The Joy of Surrendering to His Will, The Essence of Japji, Let us Learn Gurmukhi (4 parts). All of his works have been well received by scholars and general readers alike.