In 1994, Patagonia invited representatives from 75 grassroots nonprofit organizations to gather and learn from active experts how to be more effective at what they do. Through this ongoing conference as well as years of funding these organisations, Patagonia has helped thousands of activists make the changes they envision for the world. In 2016, Patagonia published Tools for Grassroots Activists, a compilation of presentations from the Tools conferences, accompanied by case studies and inspiring essays from environmental leaders.The world since then has changed in profound ways, and this new edition reflects the world we now occupy. Completely revised, Tools to Save Our Home Planet: A Changemaker’s Guidebook, The lessons and examples it shares are as current, diverse, and global as the change makers working around the world. At a high level, the book’s structure echos an activist’s journey. It begins with self-reflection, essays prompting readers to identify their purpose and clarify their cause. The focus shifts to the inner workings of an organisation or campaign – how to create a communications strategy, organise people, and fundraise – before taking an outward look at creating momentum through mobilising and events, using political tools, collaborating with other people and organisations, and taking legal action. The book culminates with a chapter all about movements: How combining purpose, effective organisations, and momentum can create a tidal wave that can change the world. A go-to resource for driving change, offering anyone who is passionate about environmental and social justice a timely and relevant resource to support their mission-aligned work, this book is intended for both those who are new to taking action and seasoned activists and community organisers who want to learn how others are finding success. The hope is that, like its predecessor, it will become dog-eared and scribbled in – a reassuring and resourceful companion to the environmental and environmental justice movements.