Duncan Green, Oxfam Strategic Adviser and LSE Professor of Practice in International Development, introduces the arguments of his new book, How Change Happens (OUP, October 2016).

How Change Happens explores how political and social change takes place, and the role of individuals and organisations in influencing that change. He discusses the challenges that 'systems thinking' creates for traditional aid practices, and how a 'power and systems approach' requires activists, whether in campaigns, companies or governments, to fundamentally rethink the way they understand the world and try to influence it.