Sustainable Investing in Practice (Simon Smiles & James Purcell, 2023) is included in Part 2 — The Purposeful Investment Landscape (Impact Investment) because it is a pragmatic, practitioner‑oriented guide that tackles the exact challenges Wealth With A Why examines: fragmented standards, opaque ESG language, poor or irrelevant data and the compromises that hinder credible sustainable finance. Drawing on examples, expert interviews and concrete guidance on ESG ratings, data and disclosure policies and multi‑asset portfolio design, the book equips investors, advisors and regulators with practical frameworks and tactics to align capital with values while balancing credibility and commerciality.