In this new contribution to Yale University Press's Why X Matters series, a distinguished writer and scholar tackles central questions of the discipline of writing. Drawing on his own experience with such mentors as John Updike, John Gardner, and James Baldwin, and in turn having taught such rising stars as Jesmyn Ward, Delbanco looks in particular at questions of influence and the contradictory, simultaneous impulses toward imitation and originality. Part memoir, part literary history, and part analysis, this unique text will resonate with students, writers, writing teachers, and bibliophiles.