Search tips for IUCAT
Access more help at the Libraries at IU KB:
If you find a book in IUCAT that is relevant to your topic, check to see which Library of Congress Subject Headings (LCSH) are attached to its catalog record. By clicking on any of the subject headings you can see all of the other books that share that classification. It may help you find more books relevant to your topic.
If you cannot find a book in University Library you can request a copy from another IU Library or another institution through Interlibrary Loan (ILL):
WorldCat searches libraries all over the nation and the world so it will find many more books, however, it will take longer for them to arrive.
Contact me or another library staff person if you need more assistance.
What exactly is a call number anyway?
A call number is the unique number given to each book in the library. Call numbers are like addresses, they tell you where a book will be located in the library.
Why should I know how to read one?
If you understand how to read a call number, it will be a lot easier for you to find books in the library.
What does a call number look like?
This library uses LC call numbers (LC stands for Library of Congress), which use a combination of letters and numbers. The same exact call number can be written 2 different ways:
A call number that you find in IUCAT (the online library catalog) will look like this:
CT105 .K55 1981
And that same call number will look like this on the spine of the book:
So, here's how you read a call number on the spine of a book:
CT --Read it alphabetically (A, B, C, CT, D, E, F, G, H, HA, HQ, etc.)
105 --Read it numerically (1, 10, 100, 100.5, 105, 1005.10, etc.)
.K55 --Read alphabetically and then decimally (.A23, .A233, .A33, .B4555, .B50, etc.)
1981 --The final line is a date.
And here is how this book would be placed on the shelf:
So now that I know how to read a call number, how do I use it to find books in the library?
755 W. Michigan Street
Indianapolis, IN 46202