In contrast to many novels in the collection that may have a more straightforward moral message, 'The Red and The Black' is more ambiguous. Julien's actions are not always clearly right or wrong, and the reader is left to grapple with the grey areas of his character and the society that enables his behavior.
The Red and The Black stands out in terms of its psychological depth. Many novels in the 100 novels collection might focus on external events and actions. However, this novel delves deep into Julien's mind, his desires, his insecurities, and how they all interact with the social and cultural norms of his time, making it a unique and thought - provoking read.