A black and white diagram depicts the menstrual cycle with arrows and text labels in a circular format

A black and white diagram depicts the menstrual cycle with arrows and text labels in a circular format. The diagram is printed on a white page in a book. The text labels explain various phases of the menstrual cycle and are positioned in a circular format, showing how the phases follow one another. The labels include: "Start", "2 to 3 Days", "Lining of wall of uterus degenerates if not pregnant", "3 to 6 Days", "Menstrual 'flow' or bleeding", "The Menstrual Cycle (28 days)", "10 to 12 Days", "Lining of wall of uterus thickens more; ready for pregnancy", "One ovum matures; lining of wall of uterus begins to thicken", "10 to 12 Days". The diagram is drawn with black lines and is centered on the page. The title "Stan and Brenna Jones" is written in black at the top of the page. The text below the diagram reads: "and fourteen or fifteen days after her period started, but it". This diagram, found in a book, describes the stages of a woman's menstrual cycle. There is no indication of location or people within the image.