In this 3 volumes the great figures of Tibetan Buddhism and its literature a special place is held by Klong-chen Rab-byams-pa (1308-1364) of the rNying-ma-pa school. He is known for having tirelessly pursued all Buddhist learning available during his time and for having systematized the teachings of the "Great Perfection" or "Great Completeness" (rdzogs chen). Nevertheless, it seems that his writings were never collected together by his followers, as those of his contemporaries such as Bu-ston Rin-chen grub (1290-1364) have been.