Marist School plans to offer evening classes for adults in January. The school offers 25 courses dealing with religion, the arts, computer applications, the environment, literature and other topics. Classes will be held on three consecutive Monday nights — Jan. 24 and 31 and Feb. 7 – at Marist School, 3790 Ashford-Dunwoody Road. The classes cost $90 for participants who register by 5 p.m. Jan. 14 and $100 afterwards, according to the program’s website. For more information, go to www.marist.com/eveningseries.