The social and musical history of the festival, told through the testimony of its principal curators Michael and Emily Eavis, as well as artists who have appeared there. Contributors include Aswad, Chris Martin, Dua Lipa, Ed O'Brien, Fatboy Slim, Florence Welch, Johnny Marr, Linda Lewis, Orbital, Noel Gallagher, the Levellers, Thom Yorke and Stormzy.