Anne Brontė seems to have been overshadowed by her two sisters. Hardly surprising, but this is a great work in itself and should not be ignored. Her sister Charlotte did not like it much, she said it was unworthy of publication - but of course, she said the same about Jane Austen's works (whose style is similar to Anne's).
It traces, with remarkable frankness, the collapse of a woman's marriage to an abusive husband (who is loosely based on Brontė's brother Branwell), and her escape from him. The characters have odd and endearing foibles, and one never loses interest as the book progresses.