This technical note discusses the practice of angel investing, particularly its meaning and suitability to emerging markets. Adapted from a chapter in An Executive Briefing on Angel Investing in Latin America (Batten Institute), this note focuses on business in Latin America, but the discussion and the relationships discussed are relevant and perfectly suitable to discussions of early-stage finance and entrepreneurship in all emerging economies. Additionally, the note explores the role of angel investors and venture capitalists on entrepreneurial activity and economic development.