This edition of the Business in Society Handbook centres on the theme ‘The power of measurement in driving social impact’. In a dynamic landscape where accountability and effectiveness are paramount, the Handbook explores the critical role of monitoring, evaluation and impact measurement in enhancing corporate social investment and responsible business practices in South Africa. It also reflects a strong research focus, presenting not only the findings of our extensive primary research with companies and nonprofit organisations, but also a round-up of relevant local and global research on development and responsible business.