Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Originally published in 1928, the main object of this book was to draw attention to the importance of hypnotism and its phenomena, in order to stimulate inquiry into what was at the time a ’mysterious and unexplored subject’. Today it can be read and enjoyed in its historical context.