• The World of the Knowledge — The shared world behind the Knowledge books
• The Thirty-Seventh Impression — Set in the world of The World of the Knowledge — a Renaissance of ink, oaths and hoarded knowledge, where what you can remember is what you can do. Here is what's ours.
• Tales of The Knowledge — Set in the world of The World of the Knowledge — a Renaissance of ink, oaths and hoarded knowledge, where what you can remember is what you can do. Here is what's ours.
• The Bindery — Set in the world of The World of the Knowledge — a Renaissance of ink, oaths and hoarded knowledge, where what you can remember is what you can do. Here is what's ours.