I used an earlier edition of this book back in school, in Home Ec class, and I used it 20 years later to teach my daughter sewing. I also used it myself, all the years in between.
I'm an advanced sewist, and I would recommend this book to anyone learning to sew, or who wants to improve their skills and knowledge. Its an excellent book, and the newer edition is just great. Its also a good reference for more experienced sewists to have on hand.