A book about a boy who makes friends with an army sniffer dog in Afghanistan has won top prize in a competition voted for by kids.
Michael Morpurgo's book, called Shadow, won this year's Red House children's book award.
He's written lots of kids' books including Running Wild, War Horse, Kensuke's Kingdom and Private Peaceful.
Shadow won both the category for younger readers and the overall prize in the UK awards.
It's the third time Michael Morpurgo has won the prize - and he's the only person to have won three times.
Michael Morpurgo's novel War Horse has been made into a stage show and a film version, directed by Steven Spielberg, is out early next year.
Other winners at the 2011 book awards were Angela McAllister and Alison Edgson's Yuck! That's not a Monster and Alex Scarrow's TimeRiders.
Other authors who've won the award in the past include JK Rowling, Roald Dahl, Jacqueline Wilson, and Malorie Blackman.