This volume is a collection of forty articles dedicated to one of the most distinguished contemporary iranists, Nicholas Sims-Williams, on the occasion of his sixtieth birthday on 11 April 2009. It includes an essay on Sims-Williams’ outstanding contributions to Iranian studies, especially Sogdian and Bactrian, a list of his publications, editions of various texts written in Sogdian, Khotanese, Parthian, Middle Persian, and Avestan and articles on Old Persian, Middle Persian, New Persian, Bactrian, Balochi, Tati, Judeo-Persian, Caucasian, Uighur philology, linguistics and iconography. The book is illustrated by numerous plates.