Joseph Conrad has been considered one of the most important authors of the 20th century, and his novel "Heart of Darkness" has been the pattern of a lot of films,like the modern "Apocalypse Now".
    But if I would have to remark one thing of the book, it would be undoubtly the way that the emotions, the motivations and the human kind generally are treated in it. It is surprising the complexity of the human behaviour and one of the most difficult things to understand. I would give to the book a didactic sense.