In Thinking in Systems, Donella Meadows provides an accessible introduction to systems thinking, explaining how to understand complex systems and interact within them more effectively. She describes different types of systems, including physical and social systems, and key system concepts like stocks, flows, feedback loops, leverage points, and delays. Meadows illustrates these ideas through real-world examples and models, and argues that adopting a systems perspective can help address many of society’s challenges in areas like sustainability, politics, and business. She aims to teach readers to think broadly about interconnections, change over time, and root causes so they can better understand and influence systems for desired outcomes.