14 CD set taught/interpreted by evangelist Christopher West. The basis is Saint(Pope) John Paul II's "Theology of the Body'.which was a series of 129 lectures on human sexuality issued over a 5 year period. They covered celibacy, virginity, contraception, and much more detail. A complete description can be found on the interent, wikipedia eg. Whether of not you are Catholic, Christian, a member of the clergy, or simply an interested person of faith, John Paul's understanding of the bible, regarding the subject, is worthwhile listening. CD tracks are 5 minutes so you can easly place mark your listening progress or note passages for follow-on research. The Cd set was new but the reproducer apparently did not let the ink dry well enough before packaging the cds so the ink sweated.causing some stickness to the cds when removed from their loose leaf envelopes. . The cds were softly cleaned with dish soap and tested. All CDs work perfectly although the printing is not as clear prior to the cleaning. Each CD is now repackaged in its own plastic folder. The original case is still included as you may want to acquire new loose leaf envelopes and use the same case. There was also a study guide that is referenced in the CDs - however, in listening to the majority of the lessons, I don't see where the study guide adds much. .