This chapter departs from the idea that technologies can have political and ethical values. It then offers three important approaches that try to grapple with this idea. The first is actor network theory, which departs from the idea of symmetry between human and non-human ‘actants.’ The second are theories or technological mediation, which offer us ways to understand different ‘human-technology-world’ relations. The third is value sensitive design, an approach developed by engineers to translate values into concrete design requirements. The chapter shows how each of these approaches can be applied to discuss concrete cases of technologies having values.