Many individuals are not aware of who is collecting and handling their personal data for what purpose. Usually privacy policies are too long, too complicated to understand, and reading them is hardly appealing. To improve the awareness and comprehension of individuals on what is happening with their personal data, privacy icons are being proposed. The PrimeLife project has developed icon sets for different use cases such as e-commerce, social networks and handling of emails. It conducted user tests and an online survey to analyse how well users understand what the privacy icons should express. This section summarises the findings of PrimeLife’s work on privacy icons.