The Nixon Tapes: 1971-72 by Douglas Brinkley and Luke Nichter. Houghton Mifflin Harcourt, 758 pp., $35, July 2014, 978 0 544 27415 0
The Nixon Defence: What He Knew and When He Knew It by John W. Dean. Penguin, 784 pp., £14.99, June 2015, 978 0 14 312738 3
Washington Journal: Reporting Watergate and Richard Nixon’s Downfall by Elizabeth Drew. Duckworth Overlook, 450 pp., £20, August 2014, 978 0 7156 4916 9
Chasing Shadows: The Nixon Tapes, the Chennault Affair and the Origins of Watergate by Ken Hughes. Virginia, 228 pp., $16.95, August 2015, 978 0 8139 3664 2
The Invisible Bridge: The Fall of Nixon and the Rise of Reagan by Rick Perlstein. Simon and Schuster, 860 pp., £25, August 2014, 978 1 4767 8241 6