World Book Day has been observed on the first Thursday in March since 1995
A set of books are released for £1 each year, with Tom Fletcher's There's a Wolf in Your Book and Luna Loves World Book Day written by Joseph Coelho fronting the 2021 line-up
Rochelle Humes led the stars helping their kids mark the event, with daughter Alaia-Mai, seven, dressing up as Willy Wonka, while Tamara Ecclestone's eldest child Sophia, six, channelled a unicorn
Amid the coronavirus pandemic, organisers have been working with education centres to distribute the tokens by printing them at home or showing single-use digital versions to booksellers on mobile devices