This is a book on how common psychology, special effects and trickery can create miracles for audiences.  The author tries to explain that there may be nothing supernatural in magic but only science and illusion.  He refers to miracle mongers are mere mortal men without any supernatural powers but have the knowledge of how to create illusions and wow audiences.   Readers will find interesting tricks and objects used to create illusions. Definitely, a must-read book for magicians and anyone engaged in Divertissement Affaires!