This recording is the twentieth and final episode of the United Nations Radio series Easy as ABC, an educational series for children written by Gerald Kean and produced by UNESCO and United Nations Radio. Although broadcast internationally, this is a recording of the American broadcast. The series is hosted by Frank Gallop and David LeGrant, who voice the characters named Alpha and Beta. The recording opens with a list of celebrities featured throughout the series. This episode concerns the letter Z for zoo, featuring Joe E. Brown. Subject matter concerns the human challenges UNESCO faces in its efforts.