Concept
Leverage Points
3 books in the library reach for this idea - each in its own way. When independent authors converge on one concept, it usually deserves attention.
Thinking in Systems
How this book uses it: Places where small changes produce big effects. Higher leverage includes changing goals, rules, and paradigms - not just parameters.
Tribal Leadership
How this book uses it: Specific interventions that move individuals and tribes to the next stage. Match your interventions to current stage.
Upstream
How this book uses it: Where small interventions create disproportionate impact. Find the acupuncture points in your system.