David Penn with the kind permission of Michael Murray reveals material that will enable you to create harmonious effects with your spectator's own phone and Pi Revelations with no apps required

The spiral can be seen in large auditoriums or use it at a birthday party

and detailed explanations of the set up and handling

Jon Stetson:

52 poker-size playing cards

Miracles with Cards | James Swain Peter David Penn with the kindJames Swain's book Miracle with Cards has stunningly effective simple card routines. Improve your sleight of hand card skills immediately and with ease. Thorough instructions with photo illustrated explanations to learn. From Introduction by Darwin Ortiz: "What I like about this book is that it lives up to its title. These are card tricks that go for the jugular, tricks that push the boundaries of what's possible with a deck of cards. In so doing,