Worth every penny. It doesn't go very deep in each subject, but enough to better understand and appreciate Japanese swords. The described forging techniques are detailed enough in my opinion for someone who wish to start trying forging his own blades (most probably knives for beginning). Lots of stuff can't be learned by books, and this one is no exception, but at least you'll learn basic forging techniques instead of starting from scratch, on your own.
It has a great deal of information on Japanese swords, how to identify them according to the era they were made, etc.
I highly suggest this book for every Japanese sword enthusiast.
