Surveys are omnipresent: by telephone and increasingly online, people give their opinion or assessment on all kinds of things. In this episode, survey expert Henning Silber from GESIS talks about how to recognize a good, serious survey and how it can be structured. In an interview with Ursula Weidenfeld, the focus is also on whether the impression is correct that opinion pollsters are increasingly mistaken with their results and what the reasons for this could be. Henning Silber also answers questions like: How can survey results be influenced? Where are the limits of surveys?