Bill Gates Sr. and Mary Ann Mackin about the importance of showing up for life, both in a personal and societal sense. The authors explore this theme through reflections on their own lives and experiences, including anecdotes about their family, friends, and work. The book also discusses the significance of hard work, radical generosity, open-mindedness, and the power of one, while examining issues such as public service, education reform, global poverty, and the need to embrace a sense of global community.