The wonderful book "Dear Gretchen" investigates all the letters that the author. Gretchen Nash, has kept inside a luggage case since her childhood. Many beautiful graphs were constructed to reveal the word frequency and type (e.g. swear words, abbreviations, colors, names, slang, nicknames, holidays, etc.), and each of the 187 letters were thoroughly documented inside of the book. Most graphs inside the book were completely developed out of paper, as paper stands for an universal symbol of childhood, and most of the letters were received in elementary and middle school. The forms of the graphs range from very traditional to non-sensical, representing a very real and fantastical memory of childhood.

www.gretchenetc.com

found via http://tinyurl.com/c3pqnx