Every spring, ramblers, walkers, and hikers who enjoy the open countryside have reason to be grateful to those who took part into the mass trespass on Kinder Scout on 24 April, 1932, which fuelled the right-to-roam movement. (It's still a very popular walk, sometimes too popular.) Nevertheless, access to thousands of square miles of land is increasingly blocked; The Book of Trespass (2020) by Nick Hayes is an important account of this dispossession of public rights.