The authors to this edited volume combine expertise of a cross-cutting nature. Insider insights to the activities of the Barroso II Commission are first of all offered by leading in-house experts from Commission Directorate-Generals in charge of the analysed fields: Economic and Financial Affairs (Lahti), the Internal Market (Faull) and Public Procurement (Hoffmeister). This expertise is complemented in tax issues by a specialist from the EU’s co-legislator, the Council of the EU (Strub). Public sector expertise is mixed with selected private sector perspectives in areas crucial to the European companies and their competitiveness – procurement (Meulenbelt, law practitioner), value-added taxation (Lejeune, consultant) and Intellectual Property Rights (Olkkonen and Vaario, corporate). Finally, the insiders’ perspectives are complemented by external observations from the media (Strupczewski from Reuters) and academia (Geiger, Jansson, Kalimo and Salminen).