The fab photos capture pupils in the Larne, Carrickfergus, and Newtownabbey areas between 2012 and 2016.
Can you spot anyone you know?

1. World Book Day
Zoe Fleck, Chloe Campbell and Kerrie Wilson of Ballyclare Primary School celebrating World Book Day in 2013. INNT 12-023-FP Photo: Freddie Parkinson

2. World Book Day
Brody and Jayden as Willie Wonka from Charlie and The Chocolate Factory and Hannah as Annie at Larne and Inver PS for World Book Day, 2015. INLT 10-217-AM Photo: Alistair Mawhinney

3. World Book Day
World Book Day 2014 - P2 pupils at St MacNissi's Primary School. INLT 11-010-PSB Photo: Phillip Byrne

4. World Book Day
Pupils dressed up as their favourite characters for World Book Day at Whitehouse Primary School in 2013. INNT 11-418-RM Photo: RM Studios
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