BITCOIN BLACK FRIDAY SPECIAL! 21% OFF. LIMITED TO 21 COPIES. This is a premium matte hardcover edition, signed by the author (ships to US & CAN only). A collection of the most helpful frameworks, mental models, and heuristics for making sense of money in the Digital Age. Written for a non-technical audience and packed with thought-provoking illustrations, it's a valuable resource for all levels. Let it be your handy companion as you journey down the rabbit hole.