- Wesley: "These are source books, templates. I use them to call forth material in our archives. "
- Roger: "So, you can simply call forth anything as powerful as the Saitama Codex?"
- Wesley: "Yeah, the archive is extensive. We have, well, almost any text you can think of."
- — Wesley Wyndam-Pryce and Roger Wyndam-Pryce (cyborg)[src]
Wolfram and Hart Source Books are magical source books which serve as both templates and conduits. Any text stored in the Wolfram and Hart database can be populated into any one of these books by holding one of the books, and speaking the text-name close to the book.