As safe spaces in communities that enable access to information, knowledge and culture, public libraries have a clear role to play when it comes to data privacy. It is important that public library users feel confident and well informed about how their data is being collated, stored or shared by the library service and its contractors, or by the online services offered in library buildings. Leading the Way – a guide to privacy for public library staff is designed to support public library staff across the UK to develop and enhance how libraries approach the topic of privacy and play a leading role in advancing the privacy of library users. The guide has been designed to help library staff to consider the kind of data they collate, hold and share about those who engage with their services; and how ‘privacy friendly’ their systems and resources are. It includes practical steps that can be taken by those seeking to enhance the approach to privacy across different aspects of their service.