‘Crystal World’ was an art exhibition held in July-October 2011. Curated by Gill Perry, Professor of Art History at the Open University and with the collaboration of the Royal Society, it explored modern artists’ fascination with the crystals and the relationships with scientific and philosophical studies of these chemical substances. In this podcast Gill Perry discusses the exhibition with Dr Keith Moore, Chief Librarian of the Royal Society. The interview takes place in the exhibition space in October, 2011.