Harriet Hargraves book is great! I refer to it all the time, if just to find the right needle size for a particular thread. Our Guild brought her in to teach a class. FUN! Funny lady! Great class. One of her insights about quilters that she shared is, if you're standing in line to have a yard cut and the person behind you says "Oh, I HAVE to get some of that!", you then decide to get three yards for yourself. Oh, how true.