In this article, the author talks about "Folds" and "Etudes" which are images derived from anonymous typing exercises that he found in a used copy of "Touch Typing Made Simple". "Etudes" refers to the musical tradition of studies for a solo instrument, which is a typewriter. Typing exercises are repetitive attempts to type words and phrases rapidly and without error. Typing proficiency is calculated by speed and accuracy. The medley of words on each page of the "Etudes" however, reveal slips and mistakes, commonly referred to as "typos", that have an intriguing and somewhat absurd effect on the language and signification that fills each page. The relationship between information as interference, noise, and sound is revealed during attempts to read the "Etudes" aloud. The pages of "Etudes" are accompanied by a polyphonic audio recording of the spoken texts. "Folds" are studies of the "Etudes". The "Folds" are topological explorations of typographic error organized according to typological tables of presentation. (Contains 4 tables.)