Half of a Yellow Sun by Chimamanda Ngozi Adichie - a remarkable novel about moral responsibility, about the end of colonialism, about ethnic allegiances, about class and race; and the ways in which love can complicate them all.
Americanah / Chimamanda Adichie. Older readers who "love to read, especially about other cultures and hardships" will appreciate this story of a Nigerian immigrant dealing with love and culture shock in a new land."
The God of Small Things by Arundhati Roy. Following publication in 1997, many Indian readers were upset by Roy's depiction of a sexual encounter between members of different castes. Protests broke out and attempts were made to ban the novel from bookstores across India. Roy won the Booker Prize that year.