Between 1940 and 1973, six consecutive American presidents secretly taped thousands of their meeting & telephone conversations. The PRP makes these once-secret tapes accessible via their Presidential Recordings Digital Edition (PDRE), which includes digitised versions of all PRP transcripts previously published with W. W. Norton. These include eight volumes of Johnson transcripts (2003–2011) and three volumes of Kennedy transcripts (2001). PRDE also includes born-digital transcript volumes on Nixon’s First Week of Taping, Nixon and Arms Control, and Nixon’s Telephone Tapes: 1971.