The Motorcycle Diaries is Che Guevara’s diary of his journey to discover the continent of Latin America while still a medical student, setting out in 1952 on a vintage Norton motorcycle together with his friend Alberto Granado, a biochemist. It captures, arguably as much as any book ever written, the exuberance and joy of one person’s youthful belief in the possibilities of humankind tending towards justice, peace and happiness.