Fans of art from the Dutch Golden Age will want to check out The Leiden Collection, an online catalog of one of "the largest and most important collections of seventeenth-century Dutch art in private hands." Readers will find a well-organized and easy-to-navigate database of more than 175 paintings and drawings by artists such as Rembrandt van Rijn, Gabriel Metsu, and Peter Paul Rubens. Each artwork is accompanied by a detailed explanatory entry with bibliographic references, the piece's exhibition history and provenance, and a technical summary of its conservation history. This beautifully designed resource also features scholarly essays, a glossary of art terms, a substantial collection of videos, and a helpful user guide for its online catalog. The Leiden Collection was edited by Arthur K. Wheelock, Jr., who recently retired from his position as Curator of Northern Baroque Paintings at the National Gallery of Art.