The Wellesley Institute’s Rick Blickstead and Michael Shapcott joined almost 100 community leaders – including representatives from United Way in Toronto and the surrounding region, foundations and community organizations – for a day-long workshop on collective impact. Collective impact is process of engaging large numbers of groups – sometimes 100 or more – on complex and dynamic social issues. “Large-scale social change requires broad cross-sector coordination, yet the social sector remains focused on the isolated intervention of individual organizations,” write John Kania and Mark Kramer in a recent article in the Stanford Social Innovation Review. Kania, and his colleague, Haillie Preskill, were in Toronto on May 25 to pass along practical skills in collaborating for large scale change. The Wellesley Institute’s paper on collaboration in the third sector brings together several years of research and policy work. More recently, we have done work on complex systems (see the flip sheet available from our home page) and also sophisticated planning tools and strategies.