Mystic key that unlocks the door to the soul of man! : hypnotism, the world's greatest mystery! : the master science of the 20th century
A c1900 Brooklyn advertising booklet by publisher M. Young, part of the Harry Houdini collection, promoting hypnotism lessons to a general reading public. The pictures are four small decorative text panels with slogans such as 'Hypnotism Makes You Attractive' in heavy Art Nouveau-style lettering, set in framed ornaments of scrolls, foliage and hearts that a designer could borrow for bold headline blocks.
