What age group are your books for?

With the exception of the Little Bug Book series (I’ve done six so far with three more to come in 2016) I don’t really aim my books at any particular age group, I just make books that I (artist/adult/child/parent/lover-of-nature) am inspired to make. I suspect my publishers, Penguin, are more interested in defining a target market for each book, but I try to remain unconcerned by this aspect. Instead, I strive to include layers in my books so that almost anyone can find an entry point to the story and/or artwork and something to enjoy.