Bertie has shockingly dirty habits, from nose picking to weeing on the flowerbed! Whenever Bertie does anything dirty, Bertie's family shouts at him! Will Bertie every kick his horrible habits?
David Roberts was born in Liverpool. He always loved drawing from an early age and couldn't wait to escape high school and go to art college. There he developed a keen interest in pottery and fashion and went on to study a degree in fashion design at Manchester Metropolitan University.
After university he worked as a milliner and began to get work as a fashion illustrator, but always felt his true calling was in children's book illustration.