Leather Craft Technique Encyclopaedia, Vol 1 Japanese Leathercraft book
Leather Craft Technique Encyclopaedia, Vol 2 Japanese Leathercraft book
Leather Craft Technique Encyclopaedia, Vol 3 Japanese Leathercraft book
from http://goodsjapan.com for the original japanese books or the Chinese translated versions of those 3 books which normally costs 1/2 the cost if you can find it but some translations does not carry over well.
According to the descriptions it says those 3 books were them basing on the 1960's and 1970's publications but redone with modern pictures and instructions, so it has less of the modernized tools and more older methods.
I know some of the contents uses some of the traditional methods mainly the knife based on the pictures, the later series (like 9+) uses modern tools like the adjustable groover, skiver razor blade and the swivel knife but I have no idea which books starts to move over to the newer tools or if it is littered mix of both modern and traditional tools through out the series.