Chapter 5 focuses on the changes in the editorial profession that resulted from the rise to prominence of the New Bibliography and shows how the consolidation of editorial authority and the increasingly quasi-scientific method (or mystique) of the New Bibliography worked to exclude women from its editorial ranks. This resulted in a significant decrease of woman-edited editions around the middle of the twentieth century. Continuing previous discussion of male collaborators, it demonstrates that well into the twentieth century, women editors’ successes still relied in part on finding a way into the primarily masculine network of editors via their male colleagues and allies, focusing on the careers of Grace Trenery, Una Ellis-Fermor, Alice Walker, and Evelyn Simpson.