In case anyone would like a summary of these books listed by category, visit my home node. I've compiled these books, along with a few of my own, into a single list and linked as many as I could to Amazon.com so you can quickly find summaries and reviews of each text. Hopefully, you'll find it useful. Further, if anyone would like to add books to my list (as I doubt you're all going to stop reading), please /msg me and I will attempt to keep the list updated.
in reply to Reading material
Skepticism is the source of knowledge as much as knowledge is the source of skepticism.