Amir Ashur, speaking at the Institute for Advanced Study's Historical Studies Lunchtime Colloquium, presents the India Book Project, the effort to edit and publish the medieval documents in the Cairo Geniza that record trade between the Mediterranean world and India. The project originated with S.D. Goitein, who spent decades identifying and transcribing merchant letters, legal deeds, and personal correspondence written mostly in Judaeo-Arabic by traders moving goods such as spices, textiles, and metals along the Indian Ocean routes. Ashur discusses the current state of the project, the challenges of reconstructing fragmentary manuscripts scattered across archives, and what the letters reveal about partnership, credit, and family life among medieval Jewish merchants operating between Cairo, Aden, and the Malabar coast. The talk is a working scholar's account of an ongoing archival project rather than a polished survey, aimed at listeners already interested in Geniza studies or medieval trade history.