Peter Drucker, often referred to as the father of modern management, remains relevant long after his passing, as highlighted in Rick Wartzman's book, 'What Would Drucker Do Now?'. The book connects Drucker's timeless principles to contemporary issues faced by organizations, demonstrating how his insights continue to guide effective management practices. Through various examples, Wartzman illustrates that Drucker's work encourages a focus on long-term values, understanding noncustomers, and fostering collaboration, which are crucial for business success today.