But was your loved one in the picture as they dressed up for the day of fun?
We have reminders from Monkton Primary, Marine Park Primary and the Central Library as well as plenty more.
Take a look and remind yourselves of some wonderful scenes.
5. Happy times in Hutton Henry Primary
Hutton Henry Primary school pupils Ben (left) and Thomas Saint with their book character cake they made during World Book Day in 2016. Photo: FRANK REID
6. Wonderful at West View Primary
Bed time books for these West View Primary School Key Stage One pupils. Who remembers this from 2006? Photo: hm
7. And the staff dressed up too!
Lynnfield Primary school staff in their World Book Day costumes 3 years ago. Photo: Frank Reid
8. Thrilling at Throston Primary
Look at the fun they had at Throston Primary School in 2010. Photo: hm
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