Debbie Millman: Steven Heller's latest book is Growing Up Underground, a Memoir of Counterculture, New York. She talks with him about some of the remarkable stories that you recount in this book. Will there be a sequel to this memoir to tell those stories? Seems like there's so much more to still be told,. Well, I'm not sure. He liked the idea of writing something that was very personal. This was, as you said, upfront about me.