This book is a compilation of the experiences of 86 activists from nine groups and organizations across Canada that are described by the activists themselves. The project had two primary purposes: (1) to support the valuable work of activities by allowing them to reflect on their efforts and the impact they are making; and (2) to explore questions about successful activism. The first chapter of this book provides a definition of activism, and describes the three phases of the book: (1) the context surrounding activism and how it informed their project; (2) contributions from the organizations they worked with using their own formats and stories; and (3) a summary by the editors of the range of meanings of effectiveness in activism and reflections of what they learned from this experience.