The book provides the first scholarly analysis of the withdrawal agreement concluded between the United Kingdom and the European Union to create the legal framework for Brexit on 31 January 2020. The volume covers the negotiation process, the substantive provisions, governance arrangements under the Agreement and the main challenges ahead. This book is a fascinating and erudite canter through a complex episode in European history [... T]his latest volume brings together a host of academic, legal and political science luminaries from the UK, Ireland and mainland Europe. They contribute different chapters to what is a detailed commentary on the Withdrawal Agreement, the history behind it and what the future might look like. The book contains an eye-catching foreword from Michel Barnier, the chief EU Brexit negotiator [...] The editing of the book is superb (including footnotes and index) and each chapter helpfully sets out what it is going to cover [...] Over 300 pages, the writers' contributions are blended together logically and seamlessly [...] This reviewer would give it top marks for putting together a scalable yet in-depth study of a document which has profound constitutional implications both for the UK and the EU.