For dog training, you need a philosophy: As for me, I created my own dog training philosophy based on different personnalities that inspired me, as for example Cesar Milan, Micheal Ellis, Shield K9, Robert Cabral, Larry Krohn, Tom Davis, Jan Fennel. One of the most important principles is that the dog has to understand who's the leader - which is you, the dog owner. If you make it clear, then you'll be able to have control over your dog - and then you'll be able to go further. You'll enjoy being with your dog and he'll enjoy being with you. I'm not a professional trainer, but it's my biggest hobby and I train my own dog every day. If you want me to just walk your dog, I'll walk it with joy. If you want me to train your dog while walking, I can do that with pleasure. There'll be no extra fee for that. PS: I do not speak German yet.