Booker Shortlist? Of course! Wandering Stars is a good book, but it has one problem: it's not There There. To the question of whether you have to read There There to enjoy Wandering Stars, I may have a somewhat opposite position to what people usually say. I think you may enjoy Wandering Stars more without having read There There, so if it's only about reading Booker books, I don't think you have to. If it's just about reading good books, absolutely prioritize There There and consider Wandering Stars optional bonus material.