Skeptical Inquirer is a bimonthly American general-audience magazine published by the Committee for Skeptical Inquiry (CSI) with the subtitle: The Magazine for Science and Reason. In 2016 it celebrated its fortieth anniversary. For most of its existence, the Skeptical Inquirer (SI) was published by the Committee for the Scientific Investigation of Claims of the Paranormal, widely known by its acronym CSICOP.