They are a pretty good set of books that has some patterns, advice on running a shop, becoming an apprentice, basic description on making up garments, etc etc etc. It's a good investment. but mostly you want to learn from a tailor really. not only will a decent tailor show you better ways than an outdated book, you'll also learn the finer points like dealing with customers and gageing how fussy or easy going they will be, noting their body shapes as well as measuring (its an art in itself) and basically learning the day to day hassles of a tailor (it can get stressful sometimes)