Greg James and Chris Smith talk about how they work together to write their books

What do you think of when you imagine an author?

Someone working away, alone in a room, trying to come up with ideas?

Well, actually, for loads of books, writers and illustrators work as a team.

We caught up one writing duo - Radio 1 DJ Greg James and Chris Smith.

They told us about their latest book and explained how they work together to come up with ideas.