Search the library's holdings (the Library Catalog) using the Discover Resources search box on this page. The library's holdings include both physical books and hundreds of online titles on mathematics-related topics. These are included in the catalog, or you can search for online titles directly through:
You can also use WorldCat Discovery to search the library collections of many of the world's libraries. If searching the DBL library does not turn up an item you want, go to the left-hand column and change the "Held By Library" selection to "Libraries Worldwide." Click the title of the work you want, and then click "Request Item Through Interlibrary Loan." Note that the library cannot borrow complete e-books, but can borrow electronic articles and usually e-book chapters. Most items arrive in 3 days to 3 weeks (in general, copies of articles arrive more quickly than physical items like books).
Reference books are located on the first floor of the library and have an R preceding the call number. These books cannot be checked out, but you can read, scan to email, or photocopy articles from them; just ask a library staff member if you need help with scanning or photocopying!
Browsing the shelves is another good option. Books are arranged by Dewey Decimal numbers:
Dewey Decimal Numbers for mathematics and related topics:
310 General Statistics
500 Natural sciences & mathematics
510 Mathematics
511 General principles
512 Algebra & number theory
513 Arithmetic
514 Topology
515 Analysis
516 Geometry
519 Probabilities & applied mathematics
526 Mathematical geography
The most recently published books in these number ranges are located on the 3rd floor of the library. Older (but often still useful) books may be in Basement Storage; you can ask a staff member at the Circulation desk to retrieve specific items for you, but patrons cannot browse in this area.