This chapter, in proof form, introduces an edited collection of papers written by 27 authors concerning the rise of private antitrust enforcement in Europe and its interaction with enforcement by competition authorities. This chapter and the book cover several jurisdictions and provide initial assessments of the European Commission’s proposed Directive on damages actions and its Recommendation on collective redress, each of June 2013. The book, ’Integrating Public and Private Enforcement of Competition Law — Implications for Courts and Agencies’, is edited by Philip Lowe and Mel Marquis and will be published by Hart of Oxford in early 2014.