Read Neal Cassady’s a never-before-published excerpt from the infamous “Joan Anderson Letter” at Alta Magazine. The audience at the Beat Museum in San Francisco’s North Beach was small, and it fit a certain profile. About 20 people, mostly older—gray hair, jeans and open sandals—occupied a few rows of folding chairs in an upstairs gallery on … Continue reading The Beats’ Holy Grail: The Letter That Inspired On the Road