Great stuff, but not available in English yet. See:
http://www.murmann-verlag.de/rock-your-idea.html
https://www.amazon.de/Rock-Your-Idea-Ideen-ver%C3%A4ndern/dp/B071YQB8ZP/ref=tmm_aud_swatch_0?_encoding=UTF8&qid=&sr=
http://martingaedt.de/