This catalog presents the eighteen volumes of Jamgön Kongtrül’s Treasury of Precious Instructions: Essential Teachings of the Eight Practice Lineages of Tibet (gdams ngag rin po che’i mdzod). Through this collection Jamgön Kongtrül and Khyentse Wangpo encouraged respect for the principal transmission lineages of practice that came from India. The catalog includes detailed information about each text such as size, location, lists of people associated with each text, lineage data, lists of translations available, and comparisons with previous catalogs. For research purposes, all colophons, text titles, and author names are recorded in both Extended Wylie and Unicode Tibetan.