If you don't have any collection of articles about Emily Brontë or her work (or have only the Bloom's little book, or the selection in Norton Edition or Linda Peterson's one) this is one of the best to own (the other alternative being the TWO Macmillan Casebooks on Wuthering Heights). But this book, like the old Anne Smith (ed.) one, has also important studies on the life and religion (so to speak) of Emily, and covers also an often neglected field: her poems! OK, it's hardcover and it's not cheap, but is something of a must.