Michelangelo at San Lorenzo: The Genius as Entrepreneur amends a common misunderstanding about one of the greatest masters, who has been characterized since his own day as unwilling and incapable of effective collaboration. This study focuses on San Lorenzo, a key Florentine monument of the Renaissance, where Michelangelo's contributions to the church are among his greatest achievement as a sculptor and architect. Organized around his three commissions at San Lorenzo - the never-realized facade for the church, the Medici chapel, and the Laurentian Library - each chapter examines the organization and day-to-day operations at the building site, as well as the artist's personal and professional relations with nearly 300 persons who assisted him in carrying out the designs. From the marble quarries at Seravezza to the crowded building site in Florence, William Wallace vividly relates Michelangelo's struggles and triumphs as he worked on these projects for over two decades.