This is a rare find.
The Position of Magic in Showbusiness
I purchased a bulk of the Douglas Dean collection of which many of the items were from the McDonald Birch collection. Dough bought Birch's show in the late Throughout Doug's career he kept a personal hand typed notebook of lessons ca 1955 and he was going to put this in book form. This is the original hand typed only cop of this and signed by Doug Dean. A real treasure trove of information especially for the collector.
See photos for accurate description