Jack Dunitz is a well-known chemist and chemical crystallographer with an extraordinary research history in structural chemistry. A recurring theme in Jack’s research has been use of crystal structure analysis to study chemical problems such as molecular conformation, reaction paths, intermolecular interactions, molecular motion in solids and solid-state reactions. It is not surprising therefore, given his research history, that Jack has long had a close connection with both the Cambridge Structural Database (CSD) and the Cambridge Crystallographic Data Centre (CCDC). Not only has Jack been a staunch supporter and frequent user of the CSD, he was also one of the inaugural Governors of the CCDC when the centre was first established as an independent, not-for-profit organisation and served on the board from 1987-1999.