This captivating historical novel tells the remarkable true story of Belle da Costa Greene, the personal librarian to financier J.P. Morgan. As she rises to power in the elite world of art and rare books, Belle harbors a life-altering secret - she is a Black woman passing as white in a deeply segregated society. The Personal Librarian is a powerful story of ambition, identity, and the extraordinary lengths one woman must go to protect her family, her legacy, and herself.