[1] He is the founder and operator of dPress, which has published over two hundred titles, mostly of poetry and most in chapbook format.

"I was trying to be like a street poet," he recalled later, "using magic markers to write on napkins at Cafe Med for espressos, on girls’ arms and feet.

In 1965, he attended the Berkeley Poetry Conference, what John Bennett, in 'Air Guitar' (an Ellensburg Daily Record column), has called, “an event creating white light intensity that rivaled any drug high and had more staying power.” This convergence of the Black Mountain, San Francisco Renaissance, Beat and Northwest Schools gave Denner the pivotal opportunity to study under such avant-garde poets as Charles Olson, Ed Dorn, Robert Creeley, Allen Ginsberg, Joanne Kyger, Lew Welch, and Jack Spicer.

[3] Later he would study with Robert Bly, Gary Snyder, Philip Whalen, Denise Levertov and Carolyn Kizer at Fort Worden Center for the Arts in Port Townsend, Washington.

[1] His most recent major work is a long series of cantos in collaboration with David Bromige.