LETTERBOX premiered in December, 1992. Issue One featured Verse by Fanny Howe, Sianne Ngai, Lisa Jarnot, Jennifer J. Moxley and Beth Anderson; Prose by Bita Kavezadeh, Todd Ableser, Jennifer Cooper and Mel Freilicher; and Translation by Bill Luoma, Marisa Bernárdez and Victor Tsoi.
LETTERBOX #2, published in August, 1993, featured contributions by Kit Robinson, Jennifer Cooper & José Frota, Shelley White, Beth Anderson, Jennifer Moxley, Chuck Cody, Sianne Ngai, Bill Luoma, David I. Sheidlower and Todd Ableser.
LETTERBOX #3, published in May, 1994, featured contributions by Stephen Ratcliffe, Errol Miller, Bita Kavehzadeh, Beth Anderson, Arethusa Stevens, John M. Bennett, Spencer Selby, Michael Basinski, Paul Naylor, Michael Sylvester, Pasquale Verdicchio, Scott Bentley, Todd Ableser and Larry Eigner.