Maps - Paper maps / Electronic Maps
An overview map (should!) show the route decribed in the Cicerone Guide to 'Trekking the Pyrenean Haute Route'. View the map here.
The Carte de Randonnees 1:50,000 Hiking Maps. Available from stanfords.co.uk. Can also be purchased from Amazon and Ebay. I did however find that although the maps are ajoining; on one section, some clever cartographer decided to put the cover & key on the section of the maps where the trail passes, so I was in fact missing a section. This section I completed with a screen shot of the online Open Street Maps.
Open Street Maps (OSM) are a free online map. Best viewed using the 'Cycle Map' Map Layer - one the right had side of the maps. See the map here.
A great app for both Android and iOS is Maps.me. It is based on OpenStreetMaps.org (above) and is downloadable and usable offline. I found it invaluable at times when my 1:50,000 map just didn't have the detail needed and the trail was poorly defined on the ground. Highly recommended for both mountain and city use! Remember: Don't rely on electronic mapping for navigation in the mountains; use it as a suppliment to paper maps and route finding skills.