Please, don´t mistake this XIXth century classic for the famous TV series starred by Patrick Swayze and set in the American Civil War!
I read this novel about three years ago. I strongly recommend its reading (especially if you like History) as it tells an amazing love story developed against the historical background of the British Industrial Revolution.
The characters are finely portrayed, particularly the main ones, Margaret Hale and John Thornton.
When you take it for the first time, you won´t be able to quit it halfway! (There´s a wonderful BBC TV series, too).