The First 90 Days: Proven Strategies for Getting Up to Speed Faster

Based on decades of corporate performance data, Collins identifies key traits that differentiate top-performing firms from the rest.

This book popularized the concept of *creating new markets* rather than competing in saturated ones — a strategic shift many firms aim for. It's also on the HBR “Top 40 Essential Business Books” list.

Kotter’s 8-step change model has become a standard reference for managing organizational transformation and is often taught in business schools.