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We are getting closer: Our new website is going into beta phase for 4 weeks by mid October. Register now as a beta tester!

What to expect as a beta tester:

  • Be the first – Get exclusive access to the beta version of our new website in October and be the first to see what's new.
  • Help us to optimize – Give us feedback on new features on our website and complete some small taks on different topics.
  • No obligations – You always decide for yourself whether you want to use the beta version, complete the tasks and give feedback.
  • Anonymous feedback – Unless you provide personal information along with feedback, all your responses will be anonymous.
  • Free Access Tokens – As a small thank you, we will send you an Access Token with which you can access 20 chapters or articles of your choice.


We will use your feedback to optimize our website, services and online products. As optimizing is an ongoing process we will store your data until you object or you have not opened our emails for one year.

You can find our privacy policy here.