Provides detailed coverage of the four freedoms and explains the central importance of these principles to the development of EU law and the future of the Union.Offers critical analysis and insightful commentary on some of the key debates which surround and shape EU law and sets key principles within their political and social context.Written by an expert in the field with extensive teaching and writing experience, Catherine Barnard has an exceptionally clear and engaging writing style and provides thorough discussion without overwhelming the reader.Features topical and recent case studies which clearly illustrate how abstract principles of law work in practice. Makes use of diagrams and flowcharts to help explain complex ideas and processes. Includes end of chapter reading lists and full references throughout to support further research and assessment preparation