The Hook Model is a framework for creating products that encourage user habits through a cycle of triggers, actions, rewards, and investments. ## Components - **Trigger:** External (notifications, emails) and internal (emotions, routines) - **Action:** Simplest behavior in anticipation of reward - **Reward:** Variable rewards that fulfill user needs - **Investment:** User effort that increases likelihood of returning ## Usage Used for creating products that encourage user habits and increase engagement. Helps design features that naturally draw users back to the product. ## Best Practices - Focus on user needs - Ensure ethical use - Regularly iterate ## Examples and Applications - **Product Design:** Build features that create habits - **User Engagement:** Design compelling trigger-action-reward cycles - **Retention Strategy:** Increase user investment in the product - See also: [[Atomic Habits]], [[HEART]], [[AARM]]