Cru, previously known as Campus Crusade for Christ, is an interdenominational Christian organization that promotes evangelism and discipleship in more than 190 countries around the world. In 1996, USA Today called Cru the largest evangelical organization in the United States. Today, the organization employs over 25,000 full-time missionaries and has trained 225,000 volunteers around the world.

Founded in 1951 at the University of California, Los Angeles by Bill Bright as a ministry for college students, Cru has since expanded its focus to include adult professionals, families,athletes, high school students, and more. The World Headquarters is located in Orlando, Florida, and the current president of the organization is Steve Douglass.

Cru is also the publisher of The Four Spiritual Laws, also known as the “Knowing God Personally” booklet. This takes non-believers through the four steps of Christianity and sums up the Gospel in just a few short pages. It provides an overview to those who do not want to feel pressured by someone lecturing them. It’s also an easier read for someone who finds the Bible intimidating.