The new book Modeling Populations of Adaptive Individuals, by Steven Railsback and Bret Harvey, is now for sale in Princeton University Press's Monographs in Population Biology series. The book explains the problem of modeling tradeoff decisions (e.g., where to forage as a tradeoff between food intake rate and predation risk) in individual-based models that are realistic enough that traditional optimization approaches are not feasible. It then illustrates and provides guidance on "state- and prediction-based theory", one way to model such decisions. The book's page at Princeton is here, and its supplemental materials are available via this link.