I'd forgotten all about this book. I picked it up about seven years ago and it's perfect for dipping into on a rainy day. It's divided into categories like children's, sci-fi, classics etc.
The book was published in the UK, so there's quite a bias towards English and English language novels. I've not counted up how many of the 501 I've actually read, but I reckon I've made quite a dent in the list.