This is a very useful guide when reading such complicated stories as the one from Wuthering Heights. It includes some vocabulary, which is necessary if you are not familiar with some obsolete English words. Also it gives you some background information of the world that was when the novel was published, and how it was received. Finally, it made me reconsider some of the characters' role in the story. All in all very helpful!
Withering heights is not presented here as a book. I read it though and appreciated it as a classic but oh how stupid of that period to die because your brother and husband don't like each other! Wow. Never could wrap my mind around that one.