THE GRAND CANYON TIME MACHINE: A Comprehensive Interpretive Portrayal takes the reader on a virtual sightseeing, educational jaunt along the South Rim's Grand Canyon Village sector. This traveler's guidebook covers all aspects of the canyon: geology, natural and human history, including six addenda on the relevant subject matter (i.e., facts about the Colorado Plateau, a lexicon of geologic terms, and things to do and places to see in the village). Using the interpretive walking timeline trail as a means to disseminate information to the reader, the text presents common details in an uncommon way. Specifically, a demotic style of writing that changes the academics of geoscience, natural and human history into a casual parlance employed by many guides addressing tour groups. This informative and factual text, therefore, feigns its own tour, only in a literary sense while explaining details without sermonizing. The subject matter relates specific topics of discussion presented at select vistas along the trail of time. The vistas where the discussions take place are invented and used to break up the reading material. This way no one subject is discussed at length or to the point the reader is overwhelmed. Ergo, featured topics are segmented (i.e., from the basics to the more entailed). Given this layout and piecemeal presentation of information, The Grand Canyon Time Machine is a reader-friendly text that engages and enlightens the buyer. While there are scores of books written about the Grand Canyon, book engenders a novel approach to learning and one that I believe will attract a wide reading audience, especially those who support the Grand Canyon Association's selection of reading material for its members and bookstore customers. The textbook's interpretive account of what there is to see and know beyond the scenery has also been exhaustively researched for accuracy, using a National Park Service heuristic teaching standard based on an interpretive explanation. Thus, the how-what-where-when and why factors. Total Page Count: 258