ProQuest is a vendor that provides library databases. ProQuest databases are a big part of the CTU library collection. See the whole list of databases on the CTU Library Databases guide.
Other library database vendors include EBSCO (which covers many topics), Elsevier (Science Direct) and Gale Cengage (Biography in Context and Opposing Viewpoints). There are also publishers that provide topic-specific databases like ACM for information technology, Ovid for nursing, or the DSM-5 for psychology and criminal justice.
