Little Women, but the sequels to the classic novel are usually not remembered. Good Wives is often seen as part two of the book and has been thus included in most publications. Little Men and Jo's Boys and How They Turned Out followed many of the lives of the original characters from Little Women, and of course added new characters for the school for boys that Jo March Bhaer started up with her husband.
The books are available free online or cheaply on Kindle, and are a wonderful peek into a world long past. Children's literature was not LMA's favorite thing to write, but it gave her success and became what she was known for. If you are ever in Massachusetts, a visit to Orchard House and a jaunt over to Walden Pond to follow in the footsteps of Henry David Thoreau makes for a lovely literary day trip. When W gets a little older I will take him back, since the only other time he was at Orchard House he was in utero. :) The books will make for good family read alouds in the future.
I have a soft spot for Victorian literature, much of it is still relevant today in many ways and many of the gems of the past are just waiting to be enjoyed. The picture is courtesy of the Celebration of Women Writers web site which is a wonderful resource. There are lots of books available online that otherwise are difficult to find copies of, and extensive links to background information; a treasure trove for bookworms, history-philes, and homeschoolers.