On extended session of the Scientific council of SPbIH RAS timed to 50-year anniversary of move of the Institute and the library to Petrozavodskaya str., 7 at the Reading hall of the Institute’s library the exhibition “The library of LOII: labor activity, 1936-1991” has been opened. There are presented documents (annual reports, inventories, readers’ record cards, etc.), photos and items concerned with everyday life of the library. The exhibits are organized in chronological order.