White Teeth by Zadie Smith

On New Years Day 1975, the day of his almost-suicide, life said yes to Archie Jones. Not OK or 'You-might-as-well-carry-on-since-you've-started'. A resounding affirmative.

Promptly seizing his second life by the horns, Archie meets and marries Clara Bowden, a Caribbean girl twenty-eight years his junior. Thus begins a tale of friendship, of love and war, of three culture and three families over three generations . . .