Teheuti
There are a couple of posts on my blog giving the only references Jung is known to have made to Tarot - there's not much although he acknowledged the archetypal potential there. The best book, IMHO, is the one by Sallie Nichols in that she was a Jungian and aptly demonstrates how a Jungian approaches these images. Hajo Banzahf's book is helpful for pointing out archetypal connections. If you are looking for a summary of Jung's theory of the psyche as it relates to Tarot then any of the books mentioned will give you some bits and pieces. One of the simplest and most direct is Alfred Douglas' book The Tarot. My recommendation is to read Man and His Symbols by Jung (and others). Written not long before he died, it contains Jung's own succinct overview of his core ideas (beautifully expressed for the layperson), plus essays by other Jungians chosen by Jung himself - from which you can get an idea why Sallie Nichols' book fits so well into the corpus.