Let your child's imagination run wild this World Book Day, Thursday March 1, with a themed costume from the high street.

Plenty of retailers and supermarkets are selling outfits and accessories based on characters from popular children's books including Alice in Wonderland and Peter Rabbit.

Harry Potter fans will love Sainsbury's offering, which comes complete with a Gryffindor tie, a Golden Snitch and a train ticket.

Meanwhile, stores such as Tesco and Asda have hundreds of costume ideas to choose from - including a very cute The Gruffalo option - which parents are sure to love just as much as kids will.

We've rounded up some of the best stores and outfit ideas on offer.

B&M

The bargain retailer has plenty on offer, from Alice in Wonderland, to Red Riding Hood and wizard and pirate costumes.

Many of the outfits have an RRP of £14.99 or more, so you'll be making a saving - handy for parents who have more than one child to buy for.

If your little one loves Lewis Carroll's Alice in Wonderland, there are three character costumes they can choose from, including Alice, Mad Hatter and the Queen of Hearts.

The 'Alice' outfit (£9.99) is a blue dress with a frilly skirt and it comes with a matching handbag shaped like a watch - in reference to the White Rabbit's pocket watch in the 1865 children's book.

As well as World Book Day costumes, the high street store also has a collection of pre-school children's books on offer.

Choose from Peppa Pig, My Little Pony and Paw Patrol.

Most of the outfits are available in sizes 3-5 years, 4-6 years and 6-8 years. The costumes are available in stores only and not online.

Tesco

Tesco has more than 160 outfits to choose from including costumes for teachers and members of staff, as well as ones for kids.

There is a wide range of children sizes available, from 12-18 months all the way up to 9-12 years.

Prices start at £1.99 for accessories - likes crowns and wands - and go up to £22 for adult costumes.

Stand out outfits for littles ones include a Peter Rabbit costume (£15), which comes complete with a fleece top, jumper and a headpiece with bunny ears.

The iconic character is from Beatrix Potter's 1902 children's book The Tale of Peter Rabbit. More than 45 million copies of the book have been sold worldwide.

Shop the collection here .

Primark

When you're looking for a kids' costume, Primark might not be the first store that springs to mind. But this year it's joining in the fun with its own range for little ones.

This Where's Wally onesie (£11), is perfect for children who love the puzzle book series. Other options include Willy Wonka, Alice in Wonderland and Rapunzel.

Prices start at £5, although most of them have an RRP of around £12.

The costumes are available in stores only and not online.

Asda

Head over to Asda and choose from more than 200 outfits, including incredibly cute ones for infants and babies.

Your little one will love this The Gruffalo costume (from £14), just as much as they do the children's book.

Available in sizes 1-2 years up to 2-3 years, the fleece onesie comes with an image of The Gruffalo on the hood, as well as a tail.

There are also lots of options on offer for older kids including characters like David Walliams' Gangsta Granny, Dorothy from The Wizard of Oz and plenty of pirate costumes too.

Shop the collection here .

Sainsbury's

The sizes start at 1-2 years and go up 11-12 years, so if you're buying for children in different age ranges then this an ideal one-stop shop.

All of the children's costumes are priced between £10 to £19.99.

This magical Harry Potter costume (from £15) is a great choice for wannabe wizards, it comes with a black cloak, a Gryffindor tie, a Golden Snitch, some glasses, a train ticket, a wand and a book cover.

Shop the collection here .

Partydelights.co.uk

With costumes for children, teachers and toddlers, this is the place to go if your budget is a little larger and you're looking for an extra special costume.

This Mr Twit fancy dress suit (£24.99) is splattered with paint marks to make it look extra scruffy, just like the famous character from Roald Dahl's 1908 book The Twits.

It is available in sizes 7-9 years to 10-12 years, and comes with a wig, beard, a paint pot and a bruch.

Shop the collection here .