Regarding the Thoth deck, I only have A.Crowley's own book "Book of Thoth". In my opinion, the author's own book about his or hers cards are the one that will you give you the best insight in what he/she was thinking.
After all, reading books from additional writers will only give you their interpretation of the cards. That is something that of course can be valuable, but I think that the source is always the best place to begin.
As I have read several of DuQuette's books and believe he is a true senior of O.T.O. and Crowley, I think he can add some valuable insight and explanation of the Thoth deck.
Unfortunately, I could not attend DuQuette's visit in Norway as I live 80 km from Oslo. :-(