Welcome to the online library-service of the public library Cologne. We are pleased to offer you a new and innovative service: In the online library-service you can borrow and download a great variety of digital media such as e-books, e-paper, e-music, e-audio and e-videos. A multi-faceted spectrum – of specialized books, guidebooks, entertainment, music, children's books, and books for young people as well as videos – offers something for each individual preference.