A fascinating look at personal correspondence throughout history:

Dear America: letters home from Vietnam by edited by Bernard Edelman for The New York Vietnam Veterans Memorial Commission; [with a new introduction by Senator John McCain; foreword by William Broyles, Jr.]

The 50 greatest love letters of all time by [selected] by David H. Lowenherz

Letters of the century: America, 1900-1999 by edited by Lisa Grunwald & Stephen J. Adler