I highly recommend this book. I purchased this book some years ago, shortly after its initial publication, and was awe-struck by the ingenuity of the ritual-methods for creating Tarot Talismans - and set to it at once. Since then, I have used the methods presented countless times with great success, and continue to refer to this volume regularly in my practice. The methods are a little different from the standard Z-2 Formula, but are just as excellent a way to create exceedingly potent and effective talismans.
For the intermediate and advanced ritualist, this book will take you as far as you want to go, and provide you with continued inspiration for the Art, as well as plenty of thought-provoking material to spark your creative engine - and keep it running well. At the same time, this book also serves as a superior beginner's manual on certain specific techniques and other areas of Golden Dawn-style ritual practice - definitely complementary to Donald Michael Kraig's, 'Modern Magick,' which provides a great 'over-all' introduction into the Art. In fact, I would recommend purchasing the two books together if you are new to High Magick.
Of all the hundred-something books in my magickal library, this volume is one of my most ten highly prized and used - and I do not write that lightly, as I definitely feel that of all the books written by the Cicero's, this book alone stands as one of the shining gems of their effort. Advanced practitioners will find a multitude of ways to embellish and add to the ritual structures presented, so as to augment the methods presented.
To conclude, I'm sure no matter what your proficiency or grade-level, from beginner to advanced, this book will not sit for too long collecting dust on your library shelf!