The "Happiness Project" is a personal initiative started by author Gretchen Rubin in 2009. It focuses on exploring and enhancing happiness through various strategies and activities over the course of a year. Rubin documented her experiences and findings in a bestselling book, sharing practical tips and insights on how to cultivate joy in everyday life. The project emphasizes the importance of self-reflection and intentional living. It encourages individuals to identify what brings them joy and to make small, manageable changes to improve their overall well-being. The concept has inspired many to embark on their own happiness journeys, fostering a broader conversation about mental health and fulfillment.