Barleywine
There seem to be a few books wholly devoted to 22 Hebrew Letters and path working attributed to the major Arcana cards based on Quabalistic Foundation e.g. "Living the Qabalistic Tarot" by A. Jayanti, and "The RoyalRoad - A manual of Kabalistic Meditations on the Tarot" by S.A. Hoeller etc in my Tarot book collection.
I have "The Shining Paths," by Dolores Ashcroft-Nowicki, which is devoted to path-working. Paul Foster Case goes heavily into Hebrew letter attributions (along with loads of other symbolism), and spends a lot of time on path associations. I still spend time with his "Tarot Meditations." My point was I don't find the numerical values of the Hebrew letters revelatory when used in conjunction with tarot divination the way I do the Pythagorian and sephirotic number sequences. Shin is 300, Tav is 400, and so forth, and I'm not sure what I can do with that. I get more value by using gematria and numerological reduction. Perhaps more of a "brute force" approach, but it gets everything back on the same page. My goal is practical, not philosophical or mystical.