The Antiquarian Booksellers’ Association of America (ABAA) condemns the actions of the two individuals sentenced today in the Carnegie Library thefts. John Schulman ceased to be a member of the ABAA within days of his indictment. As antiquarian booksellers, we are the custodians and caretakers of cultural materials. This incident is not only a violation of that responsibility and our rigorous Code of Ethics, it is also a tremendous loss to scholarship in the Pittsburgh community and beyond. When we were alerted to the thefts, the ABAA published lists of the stolen and missing material. Our members continue to assist the authorities and collectors around the globe in identification and recovery activities. We co-sponsored an international seminar on provenance at the Grolier Club in 2019 and as a result, bolstered our communications efforts and stolen and missing books blog. We are continuing to work with our colleagues and law enforcement agencies throughout the world and our counterparts in special collections libraries to develop a more robust international stolen books database and increase awareness on the importance of security and provenance.