Everything, Everything is based on the novel by author of what nationality?
Everything, Everything (film): Everything, Everything is a 2017 American romantic drama film directed by Stella Meghie and written by J. Mills Goodloe, based on the 2015 young-adult novel of the same name by Nicola Yoon. Nicola Yoon: Nicola Yoon is a Jamaican-American author. Nicola Yoon:  She is best known for writing the 2015 young adult novel "Everything, Everything", a "New York Times" best seller and the basis of a 2017 film of the same name.
Jamaican-American