The Women's Library is Europe's oldest and largest collection of women's history, comprising over 60,000 books, 3,500 periodicals, and more than 550 archives. It addresses challenges in the heritage sector regarding data accessibility, structure, and online availability, acknowledging a significant proportion of archive catalogues remain non-digital. The document emphasizes the importance of collaborations among institutions for effective data management and highlights the need for persistent URIs to improve visibility in search engines.