The catalog is prepared for the exhibition of the same name, dedicated to the 250th anniversary of the State Hermitage Museum, held from October 28, 2014 to February 22, 2015. The publication gives the reader a rare opportunity to get acquainted with the painstaking and laborious work of restoration artists who ensure the preservation of unique museum collections. The catalog consists of 14 sections - by the number of laboratories and main areas of activity. At the exhibition and in the catalog are restored works from all scientific departments of the museum. The publication is of interest to a wide range of readers interested in culture and art.