The best way to learn Natural Family Planning (NFP) is by attending a series of four classes taught by certified instructors of the Couple to Couple League (CCL) who have completed the necessary training and have practiced the method successfully.  Besides teaching the series, these volunteer couples are available should you need help with chart interpretation and/or counseling, even after the course is completed.  Each class lasts only about 2 hours. The cost of a series of four classes includes the materials and information needed to practice NFP for a lifetime.

Alternatively, the Couple to Couple League Home Study Course is the best way to learn NFP short of attending classes.