The Entrepreneur's story,
This review is from: Banker to the Poor: The Story of the Grameen Bank (Paperback)
The Grameen Bank story is well known by now, and you don't need to read this book to get an overview of it. Instead the book provides a great insight into Muhammad Yunus and how he grew his vision into a major enterprise. The struggle, the setbacks, the social norms working against him, the established western institutions blocking him etc. All of it is forms a story of how an entrepreneur won his battles to become an established player.
Perhaps not surprisingly, the book lacks a more critical view of microfinance.