Has your niece asked you for a book list?
If not I suggest that you give her two books 1) a book you loved at that age which she hasn't read and 2) a book you buy in a bookshop having browsed around which you would really really like to read only you also think she would like to read it too so you buy two copies and chat about it when you have both read it.
You may find this interesting from the Oxford University website
English Literature
Interviewer: Lynn Robson, Regent?s Park College
Why do you think an English student might be interested in the fact that Coronation Street has been running for 50 years?
First and foremost this brings popular culture into the mix and also shows that techniques of literary analysis can be applied to other media. It could also open up discussion about things such as techniques of storytelling; mixing humorous and serious storylines/ characters; how a writer might keep viewers or readers engaged; collaborative writing; the use of serialisation, and how writers/texts might move from being perceived as 'popular' (like Dickens, say) to be 'canonical'.
Interviewer: Lucinda Rumsey, Mansfield College
Why might it be useful for an English student to read the Twilight series?
There's several reasons I might ask this one. It's useful in an interview to find some texts the candidate has read recently and the Twilight books are easily accessible and popular. Also, candidates tend to concentrate on texts they have been taught in school or college and I want to get them to talk about whatever they have read independently, so I can see how they think rather than what they have been taught. A good English student engages in literary analysis of every book they read. The question has led to some interesting discussions about narrative voice, genre, and audience in the past.