Below you see a tag cloud generated by TagCrowd.com. TagCrowd is a web application for visualizing word frequencies in any user-supplied text by creating what is popularly known as a tag cloud or text cloud. I created a tag clowd by using as sourcetext the typescript of the first chapter of my new book. I've set it here to create an image of words based on frequency of use, asking it to choose only the top 50. I don't know where "oj" and such "words" came from, but "ltr" I know is the abbreviation for "letter" (as in an archival letter) used in the footnotes.