A World Where All Escalators Go Up - Part 2

In Part 1 of this two-part article, we introduced a term commonly heard in discussions of book deals: "escalator." Escalators are additional advance payments made by publishers to authors if and when certain contingencies occur. What are those contingencies? How much are they worth? And what, if anything, is their real value? We homed in on bestseller bonuses. In Part 2 we focus on award, book club, movie and other types of escalators.