An author whose book is based on the first World War 1 diaries of his grandfather has won the country's highest honour in children's writing.
The Children's Book Awards were announced on Wednesday.
Winning entry Nice day for a War by Matt Elliott tells the story of his teenage soldier grandfather, Cyril Elliot.
Matt Elliot said he had met his grandfather, but came to know him through writing the book.
Convenor of judges Gillian Candler says the book, which was illustrated by Chris Slane, combines graphic novel elements with a powerful, emotionally engaging narrative.
Other winners included picture book The Cat's Pyjamas by Catherine Foreman who won the Children's Choice Award.
Debut writer Leonie Agnew took this year's Best First Book Award and also the Junior Fiction category for her novel Super Finn.
The Young Adult Fiction category winner was Calling the Gods by Jack Lasenby.