This is only my second review of a Penguin product. I was compelled however, to give an opinion.
This is an excellent lecture by a foundational expert in card magic. Guys like Gilbreath,
Sam Schwartz, L. Vosburg Lyons, Edmund Rowlands etc., paved the way for their contemporaries to
incorporate useful and impossible pattern based mathematics into card magic.
I can't
imagine a serious student of card "magic" not finding a wealth of information in this presentation.