Rainbow Boxes is a project by Cori McCarthy and Amy Rose Capetta, two YA writers who want to send a collection of LGBTQIA-themed books to one library and one LGBTQ homeless shelter or GSA in all 50 states:
The hope is that the project will do many things at once. Directly, it will impact teens who receive the books and get the chance to experience the “windows and mirrors” effect of diverse fiction — recognizing themselves and understanding others. … But a secondary benefit is that they will be promoting works of fiction with LGBT themes and other kinds of diversity, helping boost authors’ sales and hopefully encouraging publishers to continue to seek out such stories.