Succession
The overarching theme of Miles Morales is succession. At the start of the comic book, Miles Morales - and the rest of the world - thinks that Peter Parker, better known by his alter-ego Spider-Man, is dead. However, Morales quickly discovers that Peter Parker is, in fact, alive. And he must team up with Parker, whom he shares a similar set of powers with, to stop the insidious Green Goblin. After the two successfully team up and defeat the Green Goblin together, Peter Parker retires, bringing who will take the mantle from him and become the next Spider-Man. In other words, what is Parker's succession plan? After seeing Morales in action, Parker crafts his succession plan and makes Morales the next Spider-Man, thereby creating the main conflict of the book.
The difficulty of maintaining a secret identity
A major theme in Miles Morales - and in the Spider-Man universe as a whole - is the difficulty of maintaining a secret identity. In Miles Morales, this involves the eponymous Miles trying to keep his identity as Spider-Man a secret from people around him and from the world. Miles initially attempts to obscure his identity to his closest family members, including his father. But Miles' efforts are in vain. His father, as well as a number of other people, discover Miles' identity, putting them in grave danger from people like Dr. Doom and the terrorist group HYDRA, who Miles battles.
Terrorism
A significant theme in Miles Morales is that terrorists don't always have to be violent. In the book, the evil terrorist organization HYDRA is able to exert control over the world and the government oftentimes through non-violent means. They bribe people, spy on people, influence in non-violent ways, and enlist the help of other bad examples, among many other things. This theme underscores how powerful an organization like HYDRA is because they are able to instill fear in people without using violence in a similar way to other terrorist organizations.
Power
As Miles navigates his role as a superhero, he must confront the weight of responsibility that comes with his powers. The book delves into the theme of power and how it can be used for the greater good, as well as the consequences and choices that accompany it.
Friendship and Support
The importance of friendship and support systems is emphasized in the story. Miles relies on his best friend Ganke, as well as the friendships he develops with other superheroes like Kamala Khan, for guidance, understanding, and strength during challenging times.
Community and Representation
The book explores the significance of community and representation, particularly in the context of Brooklyn, where Miles resides. It touches upon the dynamics of a diverse neighborhood, the importance of representation in superhero narratives, and the impact of community support on individual growth.
Prejudice and Stereotype
Reynolds addresses the theme of prejudice and challenges stereotypes. Miles faces preconceived notions and expectations based on his race and background, and the book explores the impact of these biases on his experiences and interactions with others.
Family and Relationships
The dynamics within Miles' family, particularly his relationships with his mother, father, and uncle, are explored. The book examines themes of love, trust, and the complexities of familial connections.
Coming of Age
The novel delves into the coming-of-age journey of Miles Morales as he grapples with personal growth, making decisions, and discovering his own identity, both as a teenager and a superhero.