This codex is a comprehensive collection of important legislative documents relevant to the field of European business law. It is specifically designed for students enrolled in the Business Law I course at the Vrije Universiteit Brussel, as part of the Business Economics program. Therefore, it includes only those legislative texts and excerpts that are directly or indirectly related to the course material. The codex incorporates legislative updates until 5 July 2024, including the Corporate Sustainability Due Diligence Directive.