3-4 p.m. – Participants learn about the seven essentials all nonprofit business owners must know to ensure the success of their organization. This is a basic class for anyone interested in starting a nonprofit business as well as those who can use additional insight into growing their organization. Free. For those 18 years and older. Dunwoody Public Library, 5339 Chamblee Dunwoody Rd., Dunwoody, 30338. Call 770-512-4640 for details.