This book is included because Jed Emerson’s ImpactAssets Handbook provides practical frameworks and step‑by‑step strategies for constructing and managing impact investment portfolios that deliver measurable social and environmental value alongside financial returns; its chapters (e.g., Construction of an Impact Portfolio, Total Portfolio Management, The Measurement Challenge) and placement in PART 2: The Purposeful Investment Landscape directly align with the row’s 'Impact Investment' chapter and the stated reason to learn actionable portfolio construction, due diligence, measurement and communication approaches—recommended here by Steph as a foundational book resource.