Williams (1904-71) is arguably the greatest Welsh-language poet of
the twentieth century on the strength of his only collection, Dail
Pren (Leaves of a Tree, 1956). Quaker, pacifist,
anti-imperialist and (in Anthony Conran’s words) ‘patron saint of
the language movement’, he remains a cultural icon in Wales.
– from Damain Walford Davies’ introduction in MPT Series 3/6 After Images