A wikipedia edit-a-thon is a scheduled time where people edit Wikipedia together, whether offline, online, or a mix of both; typically focused on a specific topic, such as science or women’s history; a way to recruit new Wikipedians and teach them how to contribute. Despite the widespread popularity of Wikipedia, its coverage of women scientists is far from comprehensive. It is also true that Wikipedia is edited primarily by men. The Ada Lovelace Day edit-a-thons aimdesigned to redress this imbalance. Edit-a-thons improve the encyclopedia and can be a great way to help new Wikipedians learn to edit.