William A. Sahlman is an American academic. He is a professor emeritus at the Harvard Business School. He has published research about entrepreneurship, including over 150 business cases. He is the co-author or co-editor of three books.

HBR's 10 Must Reads on Entrepreneurship and Startups (featuring Bonus Article “Why the Lean Startup Changes Everything” by Steve Blank)
2018
ISBN 9781633694392
The Entrepreneurial Venture
1992
ISBN 9780875848921
Financing entrepreneurial ventures
1998
ISBN 9780875849201
How to Write a Great Business Plan (Harvard Business Review Classics)
2008
ISBN 9781422121429