Cosmic Trigger Vol. 3: My Life After Death has a chapter on Philip K. Dick, "The Black Iron Prison."
I thought it was pretty good, but although I've read PKD for years (I read him when he was a paperback SF writer not not a prominent member of the modern canon) I wondered what someone with a really serious in Dick would think of it.
So I asked Ted Hand via Twitter. He replied, " I like it. But along with his mentions of PKD in CT1+Selected Letters of PKD introduction too tantalizing! I wish he'd said more."