Quelle est la rareté de votre collection?

Découvrez quels sont les livres les plus rares de votre bibliothèque.

A project of the

Notre collaboration avec les bibliothèques

  • Les bibliothèques reçoivent une liste de leurs livres les plus rares
    Nous donnons à la bibliothèque une liste de leurs livres classée en ordre de rareté.
  • En utilisant le USTC nous examinons les collections
    Nous comparons le catalogue de la bibliothèque avec la base de donnée USTC.
  • Nous collaborons avec des bibliothèques du monde entier
    Nous collaborons avec les bibliothèques à identifier leurs livres les plus rares.

En savoir plus

Comment travaillons-nous avec les bibliothèques?









Qui sont nos partenaires?

Ce que disent les bibliothèques

  • “This extensive list is a remarkable resource … Our major exhibition in 2018 will focus on a selection of the most intriguing and unusual items highlighted by your list.”

    Marsh’s Library, Dublin

  • “We knew that our 150,000 patrimonial items were a treasure of unique items, but we could not imagine such a considerable number.  Be assured of our greatest gratitude for your very important and very useful work for the library, the community of researchers and bibliographers.”

    Bibliothèque Méjanes, Aix-en-Provence

  • “Thank you so much for your mail! You did say, when we met, that an old collection like ours was bound to contain something interesting, but this is remarkable!”

    Ernst Berkje, Oslo Cathedral School

  • “I do want to thank you personally for including music in the USTC. Those partbooks are challenging to catalogue, but they add a key element to the larger picture, as you know. The USTC has changed my research life!”

    Kate van Orden, Harvard University

  • “I cannot tell you how thrilled we are about PWRB. It has inspired great enthusiasm about how to implement activities at Hopkins surrounding what it has revealed, and might help to continue to reveal at an important time.”

    Earle Havens, Johns Hopkins University


Of Monsters and Men

By Barnaby Cullen |   ‘He also had no eyes… the mouth was nearly the same as that of a rabid dog, inside it had three black teeth, above a broad white finger bone, pointed like a sturgeon’s rostrum … which was horrible to behold.’   This rather gruesome quote is taken from the Erclerug…

Smelling the Paper Flowers: Nature Brought to Life from Ad vivum to Virtuality

By Saara Penttinen | An ad vivum image is often understood as meaning something created “from life”, as in as a direct result of natural observation. The phrase was somewhat fashionable in the sixteenth and seventeenth centuries, used by naturalists, poets, and scholars trying to depict the relationship between art and nature. There is, however,…


USTC Adds Survey of Swedish Printing, 1601-1650

By Arthur der Weduwen  | Over the past year, the USTC team has made it a priority to expand its coverage of national print cultures that have thus far been underrepresented in our database. This past year we have made significant progress, and have expanded the USTC with coverage of the print production of Latvia,…

USTC Completes Full Survey of Icelandic Printing, 1534-1650

By Arthur der Weduwen | Over the past year, the USTC team has made it a priority to expand its coverage of national print cultures that have thus far been underrepresented in our database. When printing emerged in the fifteenth century it spread quickly throughout Western and Southern Europe, but failed to settle in broad…