The book, Visser's Annotated European Patent Convention , is a commentary on the European Patent Convention and a bestseller in European patent law. The 2023 edition of this preeminent work - the only regularly updated authoritative article-by-article commentary in English on the European Patent Convention (EPC), its implementing regulations, and associated case law provides the complete text of the law annotated with commentary and expert guidance on the interpretation of each paragraph. Since its first edition in 1994 it has provided the European patent community with the necessary insights to practice successfully before the European Patent Office. The EPO recommends the Visser's Annotated European Patent Convention as the first book in its list of non-EPO/WIPO literature to be used for the preparation of the European qualifying examination. In addition to a thorough updating of developments, new material in the 2023 edition includes the following: Amended EPO Guidelines that entered into force on 01.03.2023 Commentary on recent amendments to the Implementing Regulations Recent decisions of the boards of appeal Rules relating to Unitary Patent Protection and Rules relating to Fees for Unitary Patent Protection The 2023 edition is suitable for candidates preparing for the EQE 2024 (pre-examination and main examination).