Annet was born in Ochten and grew up in the village of Maartensdijk, near Utrecht. She studied illustration at the Kunstacademie in Kampen and at the Royal Academy of Art in The Hague.
She has been working as an illustrator for thirty years and has illustrated over 200 books, including the How Do I Survive series, the Superjuffie series, and the work of Jacques Vriens. Annet spent two and a half years traveling across North America in a motorhome named “Molly” with her husband and son.
Her debut novel, Lampje, was first published in her home country of the Netherlands, where she now lives with her family. Lampje has won four prizes, including the best Dutch children’s book of the year for 2018; it has been released in the UK as Lampie and the Children of the Sea and is now available in the United States as Of Salt & Shore.