Michelin do a series of Green Guides (long green books) covering the regions of France. Our region is "Pyrénées Roussillon Albigeois" ISBN 2.06.003.682-8. (All my history snippets are from this guide.) My copy is in French. Some Guides may be available in other languages.
My road maps are Michelin 240 "Languedoc and Roussillon" (scale 1cm:2km), and 235 "Midi-Pyrénées" (scale 1cm:2km). I also drew a quick map with some tourist destinations on it.