Cristiano Ronaldo The Biography by Guillem Balague 320 Pages, Published 2015 by Orion ISBN-13: 978-1-4091-5507-2, ISBN: 1-4091-5507-2
Inverting The Pyramid The History of Soccer Tactics by Jonathan Wilson 480 Pages, Published 2018 by Bold Type Books ISBN-13: 978-1-56858-926-8, ISBN: 1-56858-926-3