I imagined this might have something to do with the Camino.
Not so. The author - it seems a poet and presenter in The Netherlands, has used Compostella as a vehicle on which to hang an account of his lonely meanderings throughout Spain - and Teneriffe- and Portugal. The meanderings are geographical, historical, personal and about art history, architecture and philosophy, also politics and literature, and as such are usually well written and interesting.
But: they are accompanied only by a basic map of Spain, showing places, but not his route; and a few poor b/w photos. The meanderings are random and poorly organised; its often hard to establish what century and province he might be in.
The Camino crops up occasionally, and he gets out of his hire car and walks a bit of it one day; and resolves one day to do it all. He should.
He is obviously good friends with a number of ancient sculptures, but alive human beings are kept well clear of. In fact he has little time for anything less than a few centuries old.
He does succeed in conveying something of the mystery and dark side of Spain, no mean achievement, but the underlying facts are swamped by waffle and thus, for this reader, failed to stick in the memory.
A great pity - a tough editor could have made this a classic.