Book Review: Informal Governance in the European Union, edited by Thomas Christiansen and Simona Piattoni. (Edward Elgar, Cheltenham, 2004) - European Foreign Affairs Review View Book Review: Informal Governance in the European Union, edited by Thomas Christiansen and Simona Piattoni. (Edward Elgar, Cheltenham, 2004) by - European Foreign Affairs Review Book Review: Informal Governance in the European Union, edited by Thomas Christiansen and Simona Piattoni. (Edward Elgar, Cheltenham, 2004) 11 1 European Foreign Affairs Review