Who is the author of the novel “The Testaments”?

“The Testaments” (2019), the sequel to “The Handmaid's Tale”, is by Margaret Atwood; it shared the 2019 Booker Prize. Anna Burns, Marlon James and Paul Beatty are Booker winners of other years, for “Milkman”, “A Brief History of Seven Killings” and “The Sellout”.