On New Dark Ages, from Amazon page - "NEW DARK AGES lets the reader participate in Rick's IMPROV decision-making process as he applies his stream-of-consciousness approach to solving moviemaking problems, where the filmmaker must battle his/her movie into existence, often with little money and little time to complete the task. Readers can learn from Rick's "open universe" approach, where he dares to proceed against all odds."
More on the book here, and get the book at the link - https://www.amazon.com/AGES-How-Movie-EMERALD-CITIES-IMPROV/dp/1715001117
