The Story of the Idea: How Goals-Based Portfolio Theory Came to Be -- A Theoretical Foundation -- Allocating Wealth Across Goals and Across Investments -- Allocating Wealth Through Time -- Real Markets, Real Risk, Real Portfolios -- Insurance Through a Goals-Based Lens -- Impact Investing -- Taxes and Rebalancing -- Goals-Based Reporting -- Fragility Analysis of Goals-Based Inputs -- Human Risks -- Prudent Investing with High-Variance Assets: An Experimental Chapter -- As a Bridge Between Normative and Behavioral Finance -- The Future Structure of Wealth Management Firms -- Endnote: Some Final Thoughts.