Continuing an already wildly-popular series on doing the math in publishing, Tor editor Anna Genoese discourses on what happens when a surprise success in hardcover ends up doing bupkes in mass market paperback - offering up several other scenarios on how a typical publisher can make (or lose) money on a particular book. Like Part One, this is an eye-opening look at the economics of an industry still getting used to the whole bean-counter/P&L notion.