Some justification seems to be necessary for the addition of yet another History of Iranian Literature to the number of those already in existence. Such a work must obviously contain as many novel features as possible, so that a short explanation of what my collaborators and I had in mind when planning the book is perhaps not superfluous. In the first place our object was to present a short summary of the material in all its aspects, and secondly to review the subject from the chronological, geo graphical and substantial standpoints - all within the compass of a single volume. Such a scheme precludes a formal and complete enumeration of names and phenom ena, and renders all the greater the obligation to accord most prominence to matters deemed to be of greatest importance, supplementing these with such figures and forms as will enable an impression to be gained of the period in question - all this is far as possible in the light of the most recent discoveries. A glance at the table of contents will suffice to give an idea of the multifarious approach that has been our aim. We begin at the very first traces of evidence bearing on our subject and continue the narrative up to the present day. Geographically the book embraces Iran and its neighbouring countries, while it should be remarked that Iranian literature in its fullest sense also includes Indo-Persian and Judeo-Persian works.