Border, the first book in the EQ: Creative Nonfiction on Social Equity series, features nonfiction that underscores the idea of borders in both obvious and unexpected ways. Borders are commonly thought of as concrete, if arbitrary, geographical and physical spaces. But we construct and experience borders in other ways. We live in margins defined by gender, race, disability, illness, and cultural bias. In Border, Leslie Jamison, Oscar Casares, Daniel Tammet, Ta-Nehisi Coates, Sandra Cisneros, and others share stories about borders between nations and cultures and the liminal spaces of identity and perception.