If you want to observe a target group for an extended period of time to learn about general or topic specific attitudes and behaviors, a diary study is a good approach.  For this, we use different and tailored question and task formats. Besides the possibility to keep a diary about the interesting behavior patterns, the participants have the option to upload photos or videos, respond to integrated questions and write short essays on relevant topics. Moreover, participants can be targeted with concrete tasks they have to handle. As a result of these tasks, scenarios can be triggered which rarely happen spontaneously, e.g. the closing of a contract or a termination. For less Internet affine populations we will also be happy to conduct offline diary studies. The interviewees can participate via Paper & Pencil.