What Friends Do Best Paperback / softback Main Details Title What Friends Do Best Authors and Contributors      By (author) Jonathan Emmett Illustrated by Nathan Reed Physical Properties Format:Paperback / softback ISBN/Barcode 9780007847464 Classifications Dewey:823.914 Audience Children / Juvenile Publishing Details Publisher HarperCollins Publishers Imprint HarperCollins Children's Books Publication Date 13 February 2009 Publication Country United Kingdom