I find this book extremely helpful when I am involved in readings because of the clarity of the descriptions for each card. In the major arcana, for each card there is a description of the "General Atmosphere" as well as its application in a reading. The language flows well and offers a deep understanding of the concept.
For the minor arcana, the information offered is concise, descriptive, and well thought out.
Not only is the book helpful in readings, it works as an excellent tool to heighten awareness. For each card of the major arcana, a Visualization appears - a poem in which the language takes the reader inside the mode of consciousness being considered. Thoughts for Meditation are also included.
I have several books on the Tarot; this book has become THE indispensable one that receives the most use.