The Catholic Information Service (CIS) is an evangelization program of the Knights of Columbus. Booklets on critical Catholic moral and doctrinal issues are published regularly and distributed widely. CIS publications faithfully adhere to the teaching authority of the Catholic Church. In addition to audio files, CIS has a number of booklets, online courses, and other resources that may be accessed online or ordered through the website. The CIS website is located at http://www.kofc.org/cis.