Take Control of Your Period, The Well-Timed Period

Take Control of Your Period, The Well-Timed Period: "Take Control of Your Period was written to help women make an informed decision about managing their menstrual period. Reading it will let you in on the “best kept secret” about your period—you can choose whether and when to menstruate. Some women may prefer to have a period each month, but many others have lifestyles and health issues that favor having fewer periods each year."
Here's an excellent example of helping women to self-manage their bodies. Most women are still surprisingly clueless about their menstrual cycles, and this book educates them so that they can control their cycles to suit their desires.