OCA libraries provide tools and services accessible from any computer :
- 8 online request forms are at your disposal : Article ; Ask a librarian ; Book suggestions (or other items) ; Exhibition (loan for) ; Interlibrary Loan (ILL) ; Library Registration ; Scanning of document ; Table of contents email alerting service.
 - You can also send an email to biblio@oca.eu. This email is common to the 3 OCA libraries.
 - Your request is processed upon receipt during the library's opening hours . You will be informed by email of the result given to each request.
 
Orders (follow-up)
- You can send us a purchase request at any time : you will be informed by email of the follow-up given to your proposal.
 - You can follow your order by consulting our checklist (list of orders classified by laboratory and applicant).
 - You can also see the latest journal issues available in your library (Calern, Nice Mont-Gros, Nice Valrose ; Sophia-Antipolis) or the latest books. 
 
Guides and tutorials
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To guide you when using library services and resources for the first time, you have at your disposal : the user guide for newcomers ; The library user guide (pdf format)
 - To help you in your documentary research, we have selected tools and resources.  They are classified into 6 categories : Gathering information ; Practical training in information science ; Academic and professional writing ; Publishing and promoting your research ; Measuring your impact ; Managing and disseminating research data.
 - These tools evolve according to your requests and needs.
 
- Set of documents digitized by the library service on the life and history of the Nice Observatory, CERGA and the Côte d'Azur Observatory
 - These collections are organized by theme : History of Nice observatory & CERGA (1881-1985) ; Life of the OCA laboratories (1986-2011) ; Life of the OCA establishment (communication - management) ; ADION & OCA international activities ; OCA heritage and enhancement (natural, archit. & instrum.) ; OCA Scientific publications (Annales de l'observatoire de Nice...)
 - Additional resources on the Nice Mont-Gros library : Nice observatory Library History ; Nice observatory Library old catalogue ; Virtual exhibitions of our library books
 - Additional resources on the observatory : Biographies ; Chronologies
 
For more details, click on the section that interests you.
Other services and tools at your disposal :
- Catalog (OCA libraries)
 - Collections and resources (online) : Bibliographic databases ; Book collections ; Periodicals
 - Loan - Booking - Return of documents
 - Newsletter, Biblionews
 - Reader account
 - Reading room : equipments
 - Reading room (Nice Mont-Gros) - Booking
 - User guide : the quick guide for newcomers ; Library users guide