No one knows the business of social entrepreneurship better than Rupert Scofield. Cofounder and president of FINCA International--a nonprofit microfinancing institution with 7,000 employees serving 750,000 customers in 21 countries--Scofield has been a social entrepreneur for 40 years.

In The Social Entrepreneur's Handbook, Scofield leads you through the entire process of starting up and running a nonprofit, sharing personal success stories and advice on what not to do--valuable lessons he learned the hard way. The process,...