PJ Harvey, John Akomfrah, Grace Schwindt: this week’s new exhibitions

From PJ Harvey’s performance art in London to Grace Schwindt’s video installation in Sheffield, Skye Sherwin and Robert Clark find out what’s happening in art around the countryAdam Dant’s ink on paper drawings craft alternative realities that rival Tolkien for imaginative world-building. Although they often resemble fantastical antique maps or pamphlet pages from bygone eras, the crazy universe they conjure is rooted in our own. His latest show, The Budge Row Bibliotheque, takes a psych