Olivet University's Ralph D. Winter Library (RDWL) has evolved from a private collection of books donated by former Chancellor Dr. David Jang into a repository of mission resources in hardcopy and digital formats, and multiple languages. Olivet University's library was named after renowned missiologist and the University's Honorary Chairman, Dr. Ralph D. Winter, in July 2007. True to its namesake, the Ralph D. Winter Library at Olivet University is envisioned as a world-premier repository for academic and theological resources in multiple formats and languages in service for world mission.

The Ralph D. Winter Library continues to explore ways to fulfill its service mission to better support Olivet University's total curricular offerings, especially with media and electronic resources. The hallmark of these achievements is the aggressive growth of the web-based Ralph D. Winter E-Library, which supports the needs of Olivet's online learning community with an E-library that provides access to multiple information resources, including secured access to licensed products. Developed with input from the United States Center for World Mission (USCWM), the E-library has enabled all students regardless of their location to access one large college collection of print, non-print, e-books and full-text database resources, as well as links to juried Internet sites. In this way, students studying at Olivet enjoy access to databases indexing periodicals and scholarly journals, including thousands of journals.

Today's Ralph D. Winter Library is a full-service library offering students wide-ranging reference services. The Ralph D Winter Library was dedicated at Olivet University on September 10, 2007 with a special ribbon-cutting ceremony in honor of the late Dr. Ralph Winter, one of the world's foremost mission strategists. Dr. Winter was named one of the 25 most influential evangelicals in Time Magazine in 2005.