Royal Mail has unveiled special postboxes that can be seen across the UK to mark World Book Day.

The postboxes feature lines from books by authors including Greg James and Chris Smith, Nadiya Hussain, Dara McAnulty and Martin Waddell, with artwork from the likes of Harry Potter cover illustrator Jonny Duddle.

The postboxes are located in Luton, Nannerch in Flintshire, Dundee and Castlewellan in Northern Ireland, close to places of significance to either the writers or their work.

Royal Mail unveil new postmark to celebrate World Book Day

Glasgow Times: Royal Mail is also marking the 25th anniversary of World Book Day with a special postmark. (Royal Mail/PA)Royal Mail is also marking the 25th anniversary of World Book Day with a special postmark. (Royal Mail/PA)

Royal Mail is also marking the 25th anniversary of World Book Day with a special postmark.

David Gold of Royal Mail, said: “The UK has produced many world class authors and illustrators who have written books and created characters that have inspired and entertained children and adults for generations.

“We are proud to be involved in the celebration of World Book Day’s 25th anniversary and to honour the works of some of the UK’s best-loved authors and illustrators on our postboxes.”

Cassie Chadderton, chief executive of World Book Day, said: “We are delighted to be celebrating authors and illustrators from across the UK to mark our 25th anniversary with Royal Mail.

“It’s lovely to see some of our £1 book authors and illustrators featured and we hope the postboxes inspire more families to read together and showcase just a few of the wonderful books available for children to explore.”