 List of group-1 ISBN publisher codes

Group-1 ISBN publisher codes refer to the ISBN prefixes assigned to publishers in specific countries or territories. The ISBN (International Standard Book Number) system uses a series of prefixes to identify publishers and their books uniquely worldwide. The ISBN is typically structured as a 13-digit number, divided into five parts: 1. **Prefix Element**: This is usually either 978 or 979. 2. **Registration Group Element**: This identifies the country, geographical region, or language area.