Little Men by Louisa May Alcott follows Jo March Bhaer and her husband Professor Bhaer as they run Plumfield, an unconventional boarding school for boys. The novel explores the lives and moral development of the mischievous yet endearing students, who learn from experience and nature as much as from books. Through heartwarming stories and a focus on character building, the book teaches about childhood, friendship, and the joys of learning.