| 2021 | Arthur: The Always King | The Guardian Best Books of the Year source ↗ (opens in a new tab) | Selection · Children's and young adult | |
| 2017 | A Great Big Cuddle | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Shortlist · Kate Greenaway Medal for Illustration | |
| 2016 | The Sleeper and the Spindle | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Winner · Kate Greenaway Medal for Illustration | |
| 2015 | Goth Girl and the Ghost of a Mouse | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Shortlist · Kate Greenaway Medal for Illustration | |
| 2014 | Goth Girl and the Fete Worse Than Death | British Book Awards source ↗ (opens in a new tab) | Shortlist · Children's Book of the Year | |
| 2013 | Goth Girl and the Ghost of a Mouse | Costa Book Awards source ↗ (opens in a new tab) | Winner · Children's | |
| 2010 | The Graveyard Book | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Shortlist · Kate Greenaway Medal for Illustration | |
| 2010 | Ottoline at Sea | The Guardian Best Books of the Year source ↗ (opens in a new tab) | Selection · Children's | |
| 2008 | Ottoline and the Yellow Cat | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Shortlist · Kate Greenaway Medal for Illustration | |
| 2007 | The Emperor of Absurdia | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Shortlist · Kate Greenaway Medal for Illustration | |
| 2007 | Ottoline and the Yellow Cat | Financial Times Best Books of the Year source ↗ (opens in a new tab) | Selection · Children's: Under-10s | |