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Lupita Nyong'o attends the National Board of Review Awards Gala at Cipriani 42nd Street on Tuesday, Jan. 9, 2018, in New York. Image Credit: AP

Oscar winner Lupita Nyong’o is working on a picture book.

Simon & Schuster Books for Young Readers announced Thursday that Nyong’o’s Sulwe will come out next January. According to the publisher, the Kenyan actress’ debut book will be a story about “colourism,” the favourable treatment given to people with lighter skin. Sulwe is a 5-year-old girl from Kenya coming to terms with her dark skin. The book’s illustrator is still to be determined.

Nyong’o said in a statement that the book would draw on her own experiences of being “taunted” about her skin.

Nyong’o won a best-supporting actress Oscar for Twelve Years a Slave. Her other credits include Star Wars: The Last Jedi and the upcoming Black Panther.