A diverse array of printed sources from the fifteenth, sixteenth, and seventeenth centuries. All works printed in Europe before 1701, regardless of language, fall within the scope of the project, together with all pre-1701 works in European languages printed further afield. Early European Books builds upon and complements Early English Books Online (EEBO). Early European Books will be issued as a series of annual collections, each offering access to the early printed books of one or more major libraries. These collections will build to form a seamless and increasingly comprehensive survey of printing in Europe to 1700. Collection I offers a comprehensive survey of the Royal Library's (Copenhagen) holdings of items listed in Lauritz Nielsen's Dansk Bibliografi 1482-1600 and its supplement (1919-1996). All of the Royal Library's Danish and Icelandic imprints produced in the fifteenth and sixteenth centuries fall within its scope. Although Collection 1 consists substantially of material printed before 1601, the Royal Library's holdings of seventeenth-century editions of works by Tycho and his follower Johannes Kepler (1571-1630) have also been included. In total the Royal Library's collection of pre-1601 printed books consists of more than 2,600 items, comprising around 500,000 pages and occupying about fifty metres of linear shelving.