Over the ages, the Collected Tantras was edited and printed several times. This resulted in a number of editions of the collection that vary to a greater or lesser degree. THL has cataloged or acquired catalogs for several of these editions, and in addition, we have created a master catalog that compiles the information about individual texts across the many editions into unique catalog records. The editions for which there are catalogs are listed below. Some editions also have scanned page images (provided courtesy of the Tibetan Buddhist Resource Center). These are noted with the symbol “(p)”. Page images for individual editions are also accessible from the master catalog.