I love the Benni Harper books. I got them from the library and once I read the first one, I was hooked. Sure they're light reading, but there's nothing wrong with that. I strongly recommend you read them in order; they're much more fun that way.
Earlene Fowler also co-wrote a quilting book; I think it's called "Benni Harper Quilt Album." I really liked several of the patterns in it and she also included additional stories about the characters in the books. However, you don't want to read these stories until after you read the first several books.
Enjoy!