You dressed as Scooby Doo at Usworth Grange, Super Mario at Rickleton Primary and princesses at Grindon Infants.
You did it because you loved reading great books in fancy dress in times gone by.
And here's your chance to re-live it all once more, just in time for National Book Lovers Day.
It will be with us on Wednesday and in the meantime, turn back the pages to these Echo archive scenes.
1. That's novel
A retro celebration for National Book Lovers Day. Turn the pages on these scenes.
2. We spy a 2006 memory
Look at the fantastic costumes worn by these pupils at Shotton Hall Junior School during a 2006 book fair.
3. Fancy that. It's Richard Avenue Primary
Dressing up at Richard Avenue Primary School for a book day event in 2003.
4. Great at Grindon Infants
Mischa Steele, Olivia Robertson and Jasmine Pahl had a wonderful costume day - with a good read included - at Grindon Infants School in 2008.