Magazine. Poetry. Essays. This sixth letter centers around differing versions of "serial & sequence." With poems by Armantrout, Colby, Orange, Tabal trans Walker & Zbakh, Patterson, Moriarty, Clark, Waldman, Verma, Kaufman, Gurnis, Smallfield, Hanlon, Vincent, Ficarra, Hawley, Abel, Lookingbill, Drewes, Lease, Wootten, Rotenberg. In addition to notes on the serial poem by multiple contributors, there are essays by Cunningham "Fourth Factory(Notes on Formalism)", Joron "A Season Later than Winter" & "On Negative Lyric", Kwasny "Learning to Speak with Them", Albon "From a Notebook".