Der praktische Hynotiseuer
The book “Der praktische Hypnotiseur Anleitung zum Hypnotisieren sowie zur Erteilung von Suggestionen zu Heil- u. Erziehungszwecken” by Reinhold Gerling was a bestseller, as can be seen from the number of copies. No wonder with such a popular topic.
And not only the mixture of psychology, occultism and advice literature makes the book interesting, the cover is also an eye-catcher!