Belle da Costa Greene and Belle Marion Greener: one woman, two names and a secret that must never be revealed to preserve the legacy she has worked so hard to build. “The Personal Librarian” is a historical fiction novel based on the true story of tycoon J.P. Morgan's personal librarian, Belle da Costa Greene. Authors Marie Benedict and Victoria Christopher Murray collaborate, weaving fiction and fact together to create a deeply rich account of a valorous Black woman who passed as white to live the life she envisaged since she was a child. Benedict and Murray extrapolate seamlessly throughout the narrative in a way that enhances the story of Belle, giving the reader not only factual historical references but also providing an emotional connection with the protagonist.