Preface -- Acknowledgements -- Abbreviations and acronyms -- Introduction -- Architecture -- Changing global governance for a transformed world / John J. Kirton -- The G7/8 and G20 : parallel paths to pragmatic partnership / Dries Lesage -- A world without G20 summits / Martin Gilman -- Global risk governance and G20, G8, and brics capabilities / Marina V. Larionova, Mark Rakhmangulov, Andrei Sakharov, Andrey Shelepov, and Vitaly Nagornov -- Achievements -- Assessing G7/8 and G20 effectiveness in global governance / Marina V. Larionova, Mark Rakhmangulov, and Andrey Shelepov -- Working together for G8-G20 partnership : the Muskoka-Toronto twin summits of 2010 / John J. Kirton -- G20 : from crisis management to policies for growth / Zia Qureshi -- B20-G20 engagement : achievements and challenges / Marina V. Larionova, Mark Rakhmangulov, Andrei Sakharov, and Andrey Shelepov -- Accountability -- The Muskoka accountability report : assessing the written record / Ella Kokotsis -- G7/8 and G20 accountability and civil society / Peter I. Hajnal -- Mapping G7/8 and G20 accountability / Marina V. Larionova and Andrey Sakharov -- Advancing G8 and G20 effectiveness through improved accountability assessment / John J. Kirton -- Conclusion -- Conclusion / John J. Kirton -- Bibliography.