[Achebe's declared aims as a writer] are twofold: to teach his people, and to satirise them; or, as he puts it, 'to help my society regain its belief in itself' and 'to expose and attack injustice'. The first is part of his contribution to the task of giving back to Africa the pride and self-respect it lost during the years of colonialism, to repair 'the disaster brought upon the African psyche in the period of subjection to alien races'. In this way, he takes his place alongside the band of historians, anthropologists, and political scientists who are hard at work on the massive task of African rehabilitation.

The second, the satirist's vocation, is in a sense loftier than the first, since it can transcend the bounds of temporary needs and exigencies; it also suggests an important role which the author has always been called upon to play. But...