Meditations on the Tarot (Anonymous)
Guide of the Perplexed (Maimonides)
I'm reading it now and enjoying it. I tried a few months ago and just glanced off of it. What's different this time is that I'm not reading it in any particular order. I just flip through the pages and if something catches my eye I go from there. This approach has worked much better. I've now read three or four of the Arcana and my appetite is whetted for more.
Another good trick might be to read this blog for a month or so as a primer.