The happiness project aims to study and to eventually predict Cullen’s overall happiness.  She numerically chart a variety of things in her life, everything ranging from weather, to diet, to exercise.  She then gave her overall happiness a score, ranging from one to one hundred percent happy.  Through this recorded information she was able to graph her happiness to come to conclusions about what makes her happy.  

The series consists of 52 charts, charting one year of her happiness. A book has been produced which includes all of these charts as well as a worksheet for you to find your own happiness level based on this research.