Chimamanda Ngozi Adichie started working on her first novel because she was homesick. She was studying at an American university and she missed her life and family in Nigeria.
So, she did what she's done since she was a little girl...she wrote. The result was Purple Hibiscus - a novel about a teenage girl with an abusive father.
Her second novel, Half of a Yellow Sun, was an epic story about the Biafran war of secession in the 1960's.
Her latest book, Americanah is, she says, a story about love, race and the politics of hair.
The main characters are Ifemulu and Obinze - who fall for each other when they meet in high school in Nigeria - but lose touch when Ifemulu goes to the United States to study. Eventually they do meet again and their love story haunts almost every page of the novel.
The book is also an exploration of modern life in Nigeria, what it's like to be displaced as a new immigrant and, of course, it's about hair.
Chimimanda Ngozi Adichie splits her time between Nigeria and the United States.
Guest host Kevin Sylvester spoke to her in our Toronto studio.