“Our OSS project sustainability planning has been deeply enriched by the case studies, syntheses, and synopses presented. Reading the Guidebook was a revelation – realizing that there are people and organizations who have blazed these OSS organizational tasks and have left behind a rich and deep history of successful approaches and challenges. This guidebook felt like a coming out or coming of age primer for OSS projects seeking sustainability. I can’t emphasize enough how insightful and richly nuanced the guidance is in this book, and how thoughtfully it is organized and presented.”