Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

IWU OCLS Tutorials: Course Textbooks - OCLS Support

Today's Hours:  

Librarians may not be available during all open hours but will answer ASAP.

After Hours & Weekend Help


I need my course textbook.


Some books and articles in your courses are from OCLS databases and will give you instructions to log into OCLS or contact OCLS for a copy. 

Slingshot, the IWU textbook provider, supplies most course textbooks. You may contact Slingshot at or 1-888-392-2930. 


If you aren't sure if you have a required textbook from Slingshot, use the Slingshot Search by Course tool.





4201 South Washington
Marion, IN, USA 46953

Contact Us

  • Mon – Thur: 8 AM – 8 PM (ET)
  • Friday: 8 AM – 5 PM (ET)
  • Saturday: CLOSED
  • Sunday: CLOSED
  • IWU Holidays & Holidays Weekends: CLOSED

  • Librarians may not be available all open hours, but will answer ASAP.