The Oxford Libraries Information System is a union catalogue of all the libraries of Oxford University
Records from this project are now available on OLIS. Searches can be made not only by Author, Title, Subject, etc., but also by Printer or Publisher name, Date and Place of Publication, Copy notes, Shelfmark and Intercollegiate Catalogue Number. More information about Oxford Libraries, and OLIS can be found at Oxford University Library Information.
Connect to OLIS.
This will take you to the OLIS Welcome Screen. From here, select a library and continue. If you are interested in books in a specific college library, select it at this point. If you have no particular library in mind it is best to choose Central Bodleian.