The best guidebook for Camino de Santiago isn’t a book at all, but the Wise Pilgrim guidebook app for iPhone and Android. This guidebook app gives information about albergues, distances, elevation, tourist stops, churches, and so much else as you make pilgrimage to Santiago de Compostela. This version is for Camino Frances, but Wise Pilgrim has apps available for nearly every pilgrimage route (Camino del Norte, Camino Portugues, Via de la Plata, Camino Primitivo, the route to Finisterre, and many others).
Check my channel for lots of videos on Camino de Santiago spirituality, gear, and planning helps.
Information about the Wise Pilgrim apps is available at: https://www.wisepilgrim.com/
To support this site, you can purchase from this packing list of my recommended items for Camino de Santiago (Affiliate Link): https://amzn.to/3vwvcef
John Brierley guidebooks are available here (Affiliate Link): https://amzn.to/3tIGkTD