Professor Marketa Trimble's (Law) new book The EU Geo-Blocking Regulation has been released. This Commentary analyses the history, technology, uses, legality, and circumvention of geo-blocking, which affects customers and businesses both inside and outside the EU. Professor Trimble examines each of the provisions of the 2018 EU Geo-Blocking Regulation, including provisions on non-discriminatory access to online interfaces, goods and services, and means of payment.