A solid entry in the Sorcerer's Crusade line, in some sense it can act as the Iteration -1 sourcebook. It focuses on the High Artisans, but contains a lot of content for the Craftmasons as well. In general, it's about the wonder-makers of the Renaissance, and more specifically the inventors and craftsmen who focus on less mystical techniques. The running fiction is some of the better work in the line, with a young woman apprenticing with a High Artisan and learning the craft and about the world. Though I would prefer more detail on several things, it appears that much of that went into the future Order of Reason book, and those things that were detailed were done quite well. All in all, a strong addition to the line.