As the discussions on circular economies become more intense, the new edition of Weetman's A Circular Economy Handbook is a timely contribution to help practitioners work through the different aspects of becoming more circular. In particular, the book's concise overview of some of the materials-related challenges to greater circularity is welcome, reflecting as it does the growing recognition of the importance of this aspect - there is no transition to an equitable low-carbon, resource-efficient society without materials. The new edition situates materials in their environmental, social, economic and, of extreme importance nowadays, geopolitical context in a thought-provoking and informative manner.