Prof. Takis Tridimas and Trevor Hartley have published The Foundations of European Union Law, Ninth ed., 2025, OUP (1000 pp).
The book examines the legal system of the European Union, including the workings of the EU institutions, the competence of the EU, external relations and EU international agreements; primacy, direct effect; the values of the EU and the EU Charter; and, in detail, the jurisdiction of the Court of Justice (judicial review, preliminary references, actions in damages, enforcement actions, and remedies before national courts). It also discusses Brexit, the Trade and Cooperation Agreement, and domestic law governing the withdrawal of the UK.
The book is available for purchase here.