I have 2 of her books, 2 stitch treasuries. They will not give you patterns for hats or whatever, but they have hundreds of all sorts of stitch patterns, categorized by lace or cable etc. The books show examples of each. I use them all the time, and find they are worth every penny.
I learned to knit as a kid, stopped for 10 years, and then relearned to knit with a book by her called The learn to knit afghan book. She taught me how to read patterns in that book.