Meghan Constantinou has been Head Librarian at The Grolier Club since 2011 and a Club member since 2013. Her research interests include the history of private collecting, women’s book ownership, and provenance studies. The Club Library collects, preserves, and makes accessible materials dedicated to the history and art of the book. Strengths of its collection include bibliographies, histories of printing and graphic processes, type specimens, fine and historic examples of printing, bookbinding, illustration, and, in particular, the literature of antiquarian book collecting and the book trade.    I spoke with Meghan via Zoom about the Grolier’s collection of private library catalogues, and asked her for advice, based on her lengthy study of the topic, on how collectors might best go about producing their own catalogues.