Tiny Owl recently launched a campaign to celebrate the importance and beauty of wordless picture books. We wanted to investigate some intriguing questions – why are wordless picture books important? Do they fill a gap that books with words can’t fill? Are their messages more universal? Do they aid literacy? Or is it just that they’re so beautiful to look at? We contacted experts in all kinds of areas of the book industry, from authors and illustrators to booksellers and journalists, as well as teachers and…