Opposing Viewpoints is a series of books on current issues which seeks to explore the varying opinions in a balanced pros/cons debate. The series attempts to encourage critical thinking and issue awareness by providing opposing views on contentious issues. The online versions are managed by Cengage Gale and the print versions are available through Rosen publishing.

Each book features black and white illustrations and cartoons, bibliographies, glossaries, chronologies, indexes, activities, and discussion questions. They are published by Greenhaven Press and are heavily used in both school and public library collections.

A review of the online database, Opposing Viewpoints Resource Center, reads, "The print series has long been a staple in secondary school and young adult collections for research and debate preparation on hot topics in social studies and science."

Christine Nasso of Greenhaven Press told Booklist, "When we learned our customers wanted series content to be made available in a fully searchable database, we responded with the Opposing Viewpoints Resource Center".

In 2017, Gale offered a Chrome extension to help students identify its Opposing Viewpoints in Context results in Google searches.