The Color-Changing Knives is a magic classic. Generally credited to Walter Jeans it became a popular pocket trick in the 1930s.

In 1958 Arturo de Ascanio, who went under the stage name Marcus, wrote the definitive book on the subject in Spanish. In 1975 Jose de la Torre released Ascanio's World Of Knives in English which helped make the routine a staple of every close-up magician's act.

The book was also one of the first Spanish magic books to be translated into English, introducing the genius of Ascanio to magicians around the world.

After being out of print for decades Ascanio's World Of Knives is back and is better than ever, with many clear photographs and illustrations that make all the techniques and routines easy to learn. This book teaches you the many tools you need to create your own routines with pocket knives that change color on command.

Techniques and routines include: Classic Paddle Move (Modernized), Cleaning Paddle Move, Passing T