This simple and discreet charting journal includes menstrual cycle science, information on how to use the journal properly, and 36 cycles (3 years) of fertility awareness charts. There are 5 extra charts for long cycles that need additional space, and a cycle summary page in the back of the book for tracking your cycle progress. The journal is highly customizable, with custom temperatures, categories, notes sections, and free space, for each person's needs. This charting journal is the 1st anniversary edition which comes in full color.