As you get to Spain there are guides to both the Camino Del Norte and the Camino Frances in English (and Spanish, French, German....). You can order them on Amazon. There are also apps for your phone in the Apple store - and, I imagine, on Android.

For the French part of the walk I am using the following French language guides:

"TopoGuides Sentier vers Saint-Jacques-de-Compostelle via Le Puy (GR765)

(I have only found this in French)


the two Miam Miam Dodo GR 65 Chemin de Compostelle guides

The Miam Miam Dodo guides, which cover the camino from Puy to the French frontier,  are also purchasable as apps (about 15 euros apiece). This is great for weight saving. When you download them they will probably appear in French, their default language. Just go to "Paramètres" ans select English! 
If you purchase them do not forget to follow the prompt you receive on opening the apps, to download the maps. There are many parts of the trail with no network.