K. T. II has more information in it that the first. As a collection of articles, it's not a how-to book so much as it is what the title implies. If you want to read about a Master Bladesmith's experiences and opinions mixed in with some good information on functional design and heat cycling methods, this is for you. As for materials, he focuses on bearing steel. He does add signifcant information to his heat treatment methods. I would like more details but totally applaud his attitude of sharing information and real world what works and why. I enjoyed the read and took some notes. You can spend the same money on magazines and not get 1/10th the value.