Full of really good explanations of metals for the craftsman. For instance, it spends a lot of time making clear the differences between hardness & toughness along with other properties that are easy to confuse. It was too technical for me to get through much at each sitting & I had to go back & skim sections as often a week would go by before I'd pick it up again.
I skimmed a lot of it since it got into alloys that I'll never fiddle with. It's a great reference that I'm recommending to my son-in-law since he plays with blacksmithing more than I do. Besides, his wife loaned it to me. She got it as a freebie through teaching.
Picked this up as I work on restoring old tools and machines as a hobby in my spare time and there have been instances where a piece needs to be welded and I've no experience welding and I'm hoping this book will be a continued resource in hobbies.
My day job involves metalography and materials elemental analysis, so I have a basic understanding of most of the topics covered in the book. I think for anyone getting into welding, this book gets just in depth enough to be very useful without going so overboard on the science stuff (metallurgy and metalography) that it will put you to sleep at night.