Including Introduction to the study of Upanishads by SRI VIDYARANYA, and The Atharvana Upanishads: Amritabindy, Kaivalya. The Human being is not what he seems to be. He is not one person but five-fold, one covering another. The outermost person has to journey within to his inmost Self and return to the surface a new being altogether, according to the Taittiriya Upanishad. The high importance of this classical Upanishad as exclusively treating among other things, of the five kosas (sheaths of the Self) cannot be over-emphasised. As the doctrine of the Kosas is pivotal to Vedanta on its theoretical as well as its practical side, students of the Vedanta should be thoroughly familiar with its before proceeding further in their studies. The present works fulfills the need in ample measures. The work now presented to the public contains the original Sanskrit text of the Upanishad in Devanagari with a literal translation into English both of the text and of the three commentaries - the Bhashya of Sankaracharya, the Vartika of Suresvarcharya and the Bhashya of Vidyaranya. This volume brings together thre books: VIDYARANYA's masterly INTRODUCTION TO THE STUDY OF THE UPANISHADS, The TAITRIRIYA UPANISHAD, with the three commentaries, and THE ATHARVANA UPANISHADS: AMRITABINDY, KAIVALYA - all the three translated by Sri Alladi Mahadeva Sastry the well-known translator of Sankarachar