Universität Bonn

University and State Library

Bonn University and State Library

The bonnus search portal

Search in bonnus

Main Library

Opening times
Mon. - Sun.: 8 a.m. to midnight
Borrowing and returning items
Mon. - Sun.: 09 a.m. to 11 p.m.

MNL Branch Library

Opening times
Mon. - Sun.: 8 a.m. to midnight
Borrowing and returning items
Mon. - Sun.: 09 a.m. to 11 p.m.

Information

Mon. - Fri.: 9 a.m. to 5 p.m.
HB: information@ulb.uni-bonn.de
HB Tel.: +49 228 73-7525
MNL: benutzungmnl@ulb.uni-bonn.de
MNL Tel.: +49 228 73-3405
Latest News
Save the date: Research Data Day on November 10, 2026
NRW Research Data Day: Workshop on data protection for research data in Bonn
Problems with email delivery resolved
Service emails from the library system are being delivered again – please report missing emails
Starting the new semester at the Bonn USL
Short introductions, among other services, to kick off the winter semester
Course Reserves: New options at the Main Library
Service expansion: New options for course reserves
MNL: Restrooms on the ground floor closed
Ongoing plumbing work in the MNL Branch Library
Reduction of the Print Journal Collection
Due to the current budget constraints, a significant number of print journal subscriptions will not be renewed. Electronic access will remain available.
Introducing Paper Pods: Dedicated Thesis Writing Spaces in the Reading Room
New long-term study spaces in the Main Library Reading Room are ideal for writing theses and dissertations
Installation of new electrical outlets in the Reading Room completed
68 additional workstations on the north side of the Main Library’s Reading Room are now equipped with electrical outlets
Current events
Subject-specific literature research for economists
Library of the ...
12:00 PM - 02:00 PM
Closed event: The session will introduce various research tools that students can use to conduct efficient literature searches. It will demonstrate how to ...
Short introduction: How to use the MNL Branch Library
MNL Branch Library
11:00 AM - 11:30 AM
Just starting out in your studies or not set foot in the library yet? You would like to get to know the new bonnus search portal? We regularly run brief ...
Short introduction: How to use the Main Library
Main Library
01:00 PM - 01:45 PM
Just starting out in your studies or not set foot in the library yet? We'll show you how to borrow a book and how to find your way around the library.
Short introduction: How to use the Main Library
Main Library
01:00 PM - 01:45 PM
Just starting out in your studies or not set foot in the library yet? We'll show you how to borrow a book and how to find your way around the library.

Contacts & bank details

Information on the USL’s organizational structure, including all its divisions, details of who is responsible for what, and an overview of contacts from A to Z.


For researchers from the University of Bonn

Research data management

The Research Data Service Center can assist you with all aspects of research data management, from planning and proposing research projects to publishing and archiving your research data.

Open Access Service Center

The service center provides you with comprehensive support, from details of current funding opportunities through to advice and information on choosing the right license.

bonndoc—the University of Bonn’s publication server

Academic works from the University can be published electronically on bonndoc.

Specialist advice

The team of subject librarians can give you wide-ranging specialist advice on things like literature searches, reference management and requesting the purchase of new items.


Further services and projects

DSC00032 - Medienzentrum PCs.jpg
© Sebastian Weule / ULB Bonn

Media Center in the MNL Branch Library

The Media Center in the MNL Branch Library offers PC workstations, equipment loans and training sessions and serves as a one-stop shop for all the University of Bonn’s media offerings.

books
© ULB Bonn

NS-Raubgut project

The project is designed to produce the first-ever systematic review of the USL’s old holdings focusing specifically on books seized as a result of Nazi persecution and is the largest undertaking of its kind currently underway in Bonn.

Historical newspapers
© ULB Bonn

Digitization of historical newspapers in NRW

The government of North Rhine-Westphalia has been funding a state-wide project to digitize its historical newspapers since 2017.

Logo
© BonnerBibliotheken

The BonnerBibliotheken partnership

This lets you run simultaneous searches in the catalogs of public libraries based in Bonn and the surrounding area.

Logo Sammlungen
© Thomas Häpp / ULB Bonn

Cultural heritage in the USL

If you have any questions about the items we hold, would like to do some research in our collections, are interested in historical and cultural studies in the Rhineland region or want to deposit your publication with us as an obligatory copy, our website is just the right place for you.

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