"Hanna" is a classic novel by the Swedish writer Johann Ludwig Runeberg, which was published in the 19th century. This book tells the story of a young girl named Hanna, who is forced to defy social conventions and fight for her freedom and self-expression. The author embodied in the novel complex psychological portraits of the heroes, and also expressed important philosophical thoughts about morality and justice. "Hanna" is not only a fascinating story, but also an important work of literature that explores the themes of gender equality, free choice and justice. Readers will be able to feel the true depth of the heroes' feelings and experience their joys and worries with them. The book "Hanna" will leave a mark in the hearts of readers and will be remembered for a long time as a masterpiece of world literature.