Principia is our very favorite kind of magic book: the kind of book that you pour over every page, trying out each and every piece Harapan describes. EVERY single effect in the book (and there are 60 effects described) is practical, and fun and radically new. You also receive a special packet of gimmicked cards to use with some of the effects.

The concept of Principia is a magic book fused with a scientific paper on physics. By day, Harapan is a physics teacher and he uses the same laser-focus and precision in both his career and his magic.

The book features impromptu magic, gaffed card magic, and dead-on easy tricks you can do the first time you try. We predict that Principia will be the most talked-about card book of the year, and that it will be studied and returned to for many years to come.

The regular edition is the orange book photographed, and the limited deluxe edition of Principia is the blue book and slipcase.