I have written six books about the history of places I have travelled to. If you are interested in history and / or travel then you should check out these books. Please bear in mind the books are travelogues rather than travel guides and so cover only the places I visited.
Here is the one about south-eastern France:
A truly fascinating part of the world. Most people are familiar with Provence and the Cote d’Azur, but Languedoc and Roussillon have much to offer, especially if you like mysteries and the history of religion. There are spectacular castles such as Montsegur, Peyrepertuse, Queribus, and Puilaurens, there are the cave paintings at Niaux, and the restored citadel at Carcassonne.