The book opens by laying out a crucial problem of contemporary society and politics: (a) the world has become more global; (b) this more global world requires regulatory frameworks, significant parts of which must themselves be global in scope; (c) to be effective and legitimate, this global governance must be accountable; and (d) current global governance is on the whole severely lacking in accountability. This collective study explores one response to this problem, asking in what ways and to what extents engagement by civil society associations of global governance institutions has furthered the accountability of those agencies to their constituents. The introduction elaborates upon this question, summarises the general approach taken in the book, and anticipates some of the broad findings that run across the various case studies.