[Excerpt]: Robert Potts reviews Geoffrey Hill's Speech! Speech! ... "One of the students whom Geoffrey Hill taught at Cambridge (1981-8) used to quote his tutor in letters to friends... Reading Geoffrey Hill can itself feel like receiving a reading list--one is frequently referred to texts and events with which one is unhappily unfamiliar--but the matter of Hill's 'difficulty' (his pun in The Triumph of Love, that he is 'charged with erudition', did little to allay criticism of his range of references) has surely been adequately dealt with, not least by the poet himself... The writers Chinua Achebe and Christopher Okigbo, variously alluded to, both worked for Nigerian radio before the Befran conflict, sinister and exemplary details of which are found throughout Speech! Speech! ..."