As i started with Home Assistant i had a huge problem to understand everything.
I think many of my german neighbours have the same problem so i create a german language Website to describe HA Basics and all my projects.
Feel free to visit https://ingos-home-assistant.de
Greetings Ingo
Es ist besser, Ihre Freunde auf eine Englisch-Schulungsseite zu verweisen, als andere Leute in diesem Forum ebenfalls von den Informationen der Deutschen profitieren.
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It is better to refer your friends to an English training page then other people on this forum can also benefit from the information from the Germans.
As much as I agree to that, I have to say that for me, as a german native speaker and a complete newbee to HA, this turned out to be really helpful making my first steps!
Also vielen Dank an @IngoNRW für diese Seite, hat mir sehr geholfen und tut es immer noch! 
Will continue in english from now on. 
I would have needed that when I started. Very nice job, Chapeau!
Super von dir . Echt nett, ich lese nämlich hier in Foren nur englisches.
Danke nochmal.