Also S1 ep 2. I have ordered the first book. The dialog with Julia Brasher explains how he paid for his house. https://harrybosch.fandom.com/wiki/The_Black_Echo_(film) Was hanging on the wall of Bosch's living room. Clever device used in literature in which a fictional work refers to itself. The TV series Bosch was derived from the books by Michael Connelly. The Black Echo was the first book. Another example is Don Quixote discussing an author who was writing a book about Don Quixote. Macedonio Fernandez wrote a novel in which "The Author" is a character. Similar idea is the Black Mirror "interactive" episode Bandersnatch, set in the 1960s but referring to something called "Netflix," which did not exist yet. Netflix was closely involved in its production and publicity. Shakespeare also used this in Hamlet's "play within a play."