As well as being the Guille-Allès children's librarian, Jan Foss is also one of the judges for the CILIP Carnegie & Greenaway Medals - two of the most prestigious prizes in children's literature.

In this interview Jan tells us how the judging process works, what it's like reading dozens of novels in a short space of time, what she's looking for while she's reading, and why there's never been a better time to be a teenage book-lover.