Today, for those who don't know, it's World Book Day, where every child in full-time education in the UK is given a £1 voucher to spend on books in a bid to get children into reading.
To celebrate the day, youngsters are also encouraged to dress-up as their favourite book characters.
This year’s World Book Day - the 24th one in history - falls on Thursday 4 March 2021. The event is always held on the first Thursday of March each year.
The date was chosen because it was the anniversary of the death of William Shakespeare and Inca Garcilaso de la Vega, a prominent Spanish Chronicler.
Some school children from Milton Keynes are now barely recognisable as they get into the spirit of the day.
So-far, we've seen Harry Potter characters, superheroes and some animal magic in a range of outstanding outfits from all of you.
Thank you to everyone who sent a photograph to celebrate World Book Day - you can still send in your photos here.
A full list of the books available using the £1 scheme is available to view on the World Book Day website.
1. Polar Bear, Polar Bear: What Do You Hear
Tyler-Jane transformed overnight into a white polar bear with fluffy white ears.
2. Peter Rabbit
Cousins Nevaeh and Darcey made a pact to dress up as Peter and Flopsy Rabbit.
3. Harry Potter and The Philosopher's Stone
Little Olly, 4, aka Harry, got in the spirit of World Book Day this morning as he dressed up as his favourite wizard.
4. Fantastic Mr Fox
Shelby became barley recognisable this morning as he turned into a furry Fantastic Mr Fox.