Book Review: From Single Market to Economic Union: Essays in Memory of John A. Usher, edited by Niamh Nic Shuibhne and Laurence W. Gormley. (Oxford: Oxford University Press, 2012) - European Public Law View Book Review: From Single Market to Economic Union: Essays in Memory of John A. Usher, edited by Niamh Nic Shuibhne and Laurence W. Gormley. (Oxford: Oxford University Press, 2012) by - European Public Law Book Review: From Single Market to Economic Union: Essays in Memory of John A. Usher, edited by Niamh Nic Shuibhne and Laurence W. Gormley. (Oxford: Oxford University Press, 2012) 20 1 European Public Law