The book "Built to Last" by Jim Collins and Jerry I. Porras examines the habits of visionary companies that have achieved long-term success. The authors argue that these companies are not simply about maximizing profits but are guided by a deeper core ideology that includes core values and a sense of purpose beyond just making money. The book also explores other factors contributing to long-term success, such as a clock-building approach, a focus on home-grown management, a commitment to continuous improvement, and the creation of Big Hairy Audacious Goals (BHAGs). Through analysis of eighteen visionary companies and their comparison companies, the authors identify key characteristics of visionary companies and provide actionable insights for leaders seeking to build enduring organizations.