This document introduces the Three Horizons Framework for managing innovation activities over different time horizons. The framework divides innovation into three horizons: Horizon 1 represents the current dominant system; Horizon 2 is a transition period as the current system declines; and Horizon 3 represents emerging future systems. Managing innovation across these horizons requires different mindsets to address current needs, transition effectively to new opportunities, and envision future possibilities. The Three Horizons Framework provides a methodology to connect innovation activities over time in a coherent way and help organizations better manage uncertainty.