Sue Lacey recently responded to another TL's email about picure books on nswtl.net with this response:
Experience has shown that it is very wise to have 2 areas of picture fiction. One for little kids [Junior Fiction] & one for big kids.It is possible to interfile picture books with novels for older kids but theshelves look higgledy-piggledy.
A better solution is to have a separate section for "Picture Books for Big Kids" - keep the novels in the Fiction Location; Put the Mature theme Picture Books + Maze books + some 793.73 Picture Puzzle books in this new Location [I called it PIC - Picture Booksfor Big Kids on my spine labels] in close proximity to novels. As an addition to this discussion, I also instituted a Senior Fiction [S-F]location for those novels that required more mature, challenging reading[specifically Year 6].
What do you think?