The author SASCHA BARTZ is a successful dog trainer, who for many years not only in Germany but also in Austria, Switzerland or Scandinavia has helped many often already desperate and resigned dog owners, who often have real odysseys of unsuccessful dog school visits behind them, to free their dogs from their unwanted behavior in the shortest time. But with a wink he always emphasizes that he is not actually training the dogs, but rather enabling mistresses or masters to understand the needs of their dogs and demonstrating correct behavior towards them.