<i>À la recherche du catalogue perdu:</i>

Over the last decade, and accelerated by the coronavirus pandemic, many auction houses have reduced the number of sales catalogs they have printed and distributed. As the information in these catalogs is vital to art historians, collectors, and the art trade, art libraries have begun to look for other ways to capture this important data before it is lost. As often is the case, collaboration between libraries has been an essential and effective means to make this work possible. This article explores what five libraries have done and invites others to participate.