To cheer up her classmates after a gloomy week, Nancy thinks of a new celebration, Fancy Day, but when the day arrives Ms. Glass shows up without her fancy dress, and the class must think of a way to make her as elegant as everyone else.
Each letter of the alphabet is represented by an important woman in the history of the United States, as well as others in her same field of accomplishment.
Olivia, who is very neat and practically perfect, despairs because her sister Sophia is super-completely and totally the messiest person, no matter where she goes or what she does.