Orange, who is a Native American and is behind titles such as "Pow wow", "There there" and "Wandering stars", has been chosen as the eleventh author to contribute to the Future Library project.
Previous contributions have been made by, among others, Tsitsi Dangarembga, Ocean Vuong, Karl Ove Knausgård, Elif Shafak and Margret Atwood.
Orange told the Guardian that the project means that he still has hope that there will be a world with books in a hundred years:
"I think I need to keep that hope alive, actively cultivate that kind of hope, about the human project's lifespan".
The manuscripts that will be readable for the first time in 2114 are stored in Oslo's Deichman Bjørvika library, in a specially designed silent room with 100 handmade cast glass boxes, each etched with an author's name and the year the text was written.
