'From Stone to Steel' is a book of weaponry and armor, but rather an explanation of their use, their cultural significance, even their drawbacks. Besides weapons and armor, this book contains new feats, new skills, new prestige classes, and new mechanics. Through each chapter, topics like tactics, special materials, training, and culture are discussed, so that they can be understood and placed in any campaign world. And though these items are based in history, suggestions are made for their inclusion in fantasy world. You'll even find items of myth, fantastic construction materials, new spells to augment weapons and armor, even inclusion of fantasy racial items (based, where possible, on myth or legend).