English Short Title Catalogue
ESTC contains descriptions of English or English-language letterpress materials published before 1801. It includes records for items of all types published in Great Britain or its colonies or in English anywhere in the world from 1473 to 1800–including materials ranging from Shakespeare and Greek New Testaments to anonymous ballads, broadsides, songs, advertisements, and other ephemera. The records provide extensive descriptions and holdings information.
The Early English Books Online database provides digitized images of books published in England from 1475 to 1700. Eighteenth Century Collections Online (ECCO), based on ESTC, includes some 150,000 titles published in Great Britain and the colonies from 1701 to 1800.