What is the setting of About a Boy by Nick Hornby?

The novel is set in London for the majority of the plot. This is a new setting to Marcus. London is a bigger city where he does not fit in at the school and is often bullied. This is a familiar setting for Will who has lived in London most of his life. By seeing this city through the eyes of two different characters, it becomes two different settings. For Marcus it is a city full of perils, but for Will it is a city full of fun and excitement.