The award-winning children's author Giles Andreae, who devised his successful Purple Ronnie character cards in Oxford, has joined forces with writer and book illustrator Nick Sharratt. Together they give us Pants (Corgi £6.99), a book created for children up to three years old.

Giles wrote the rhyming text and Nick has drawn the pictures which, as the title of the book suggests, feature different kinds of pants.

Pants of every shape, pattern, colour, size and style fill every page. There are fairy pants, hairy pants, run away from scary pants. There are loose ones, tight ones and even lighting up at night ones.

And when you think that every kind of pant possible has been included he gives us pants to put on your head when you have gone crazy.

As the book also includes a DVD of Pant songs sung by Lenny Henry, who gives us rap, reggae, disco and rock pangs, there's a sound to go with every page.

Nick Sharratt has also brought out Shark in the Park (Corgi £4.99), a paperback for children aged up to five.

This is a book which should have the very young squealing with delight as they turn the pages to discover things are not all that they seem.

It's the story of Timothy who tries out his new toy in the park and is convinced that he can see a shark. But is that shape really a shark, or could it be a cat or a crow? Surely there are no sharks in the park - or are there?

Both Giles Andreae and Nick Sharratt will be attending the Oxford Literary Festival, which takes place from March 20-25.