gregory said:
Ziegler is a bad idea. It will teach you the basics according to Ziegler. Sadly this has little to do with Thoth..... Duquette and Snuffin get my vote.
The Ziegler is a revisionist Jungian interpretation of the Thoth. It is not the Thoth as designed by Aleister Crowley. Zeigler's symbolic interpretations differ considerably from Crowley's and Zeigler virtually ignores the Qabalistic basis of the Thoth Tarot.
An example of this is Zeigler's analysis of the Fool. Zeigler identifies four spirals surrounding the Fool, signifying, in his view, the four planes of human existence: spiritual, intellectual, emotional, and physical.
Both DuQuette and Snuffin identify three, not four, spirals. They both agree that the three spirals correspond to the three negative veils of existence - Ain, Ain Soph, and Ain Soph Aur - above the Qabalistic Tree of Life.
So which one did Crowley intend? In the "Book of Thoth," Crowley identifies three spirals which "suggests the Threefold Veil of the Negative manifesting, by his [the Fool's] intervention, in divided light." Duquette and Snuffin both know their Crowley. Zeigler either hasn't bothered to study Crowley's "Book of Thoth" or has deliberately decided to ignore Crowley and invent his own symbolic analysis for the Thoth.
I agree that DuQuette and Snuffin are the best choices, along with Crowley's own Book of Thoth. I would start with the DuQuette, use the Snuffin as a supplementary text, and then eventually plow through the Book of Thoth. Incidentally, if you need more background on the Qabalah as used in the Thoth Tarot, I also recommend DuQuette's "The Chicken Qabalah."
Alan