Tome of the Watchtower, although it would seem to have a modestly good rating in the general community, is an exceptionally well-written book, particularly for those who are either familiar with a breadth of magick lore and history, or who would like to learn "traditional" magick rituals in a natural and unobtrusive way. While the actual content in gaming terms may require a certain amount of gamemaster ingenuity to include in a campaign or gamer background / storytelling to incorporate, the text of the book itself is written similarly to many stories concerning the use of magick and presents the basic structure of several enochian rites (with particular emphasis on group workings) just below the surface in the writing.

With that said, gamemasters might find Tome of the Watchtowers particularly useful in designing awakening stories and background material specific to each of the paths, as well as designing "destiny" links between players' backgrounds that can account for both why members of a cabal joined together and how their separate and individual goals in terms of story progress may have a tendency keep them together, regardless of their path and organizational affiliations. In this sense, the text presents a good balance between general magick principles and storytelling from a unified perspective and the more specific spin/tone/style that tends to go along with different kinds of practices as expressed through various traditional occult groups and solitary methods of attainment.

In a similar manner, gamemasters might find this book useful in designing either full-length campaigns or one-shot adventures that are themed for use in stories regarding seekings, recovering lost codices and spells, solving mysteries, and making peace between warring parties with cross-purposes, for example. Players may find the book useful in further developing character histories and motivations, planning their character's "career", or simply adding to their overall knowledge and background lore.

Being well-written, Tome of the Watchtowers is easy to ready, but it might be worth adding that the text is very idea-rich and content-dense, so for those less familiar with traditional magick rituals, this book may require a second read and considerable thought for best comprehension. That said, for readers who prefer a less active approach, the text is written in a manner likely to inspire your imagination if your focus is less upon game mechanics (which the book includes only lightly and summarily) and more upon game atmosphere.

All around, Tome of the Watchtowers definitely serves as a worthwhile contribution to the Mage legacy.