Britain is probably the last country that comes to mind when one thinks of alliances of parties. But, in fact, there have been many examples of co-operation among parties both in the governmental, parliamentary and extra-parliamentary arenas. No academic work has analysed yet these various examples of cooperation in a comprehensive fashion. The first one will be Alan Wager’s book to be published by Oxford University Press. He discusses his work with Zsolt Enyedi, Party Co-Op Series host and a professor of political science at the Central European University.