In May 2025, with the support of the UK Society for Co-operative Studies, Ian Adderley published a remarkable book on co-operatives. It is valuable for a wide range of readers, not only because of its breadth, but also because of its ambition to expand the scope of co-operative thinking. Instead of organising his work around the features of the co-operative (democracy, inter-cooperation, cooperative transactions, etc.), Adderley frames it explicitly by reference to academic disciplines: history, law, economics, finance, management, and so on. The book offers an “overview of co-operatives.”. Formally, each chapter is subdivided with subheadings, which enables (and perhaps encourages) selective reading. Although I read the book cover to cover, I am certain I will return to individual sections many times in search of information or references.