"We're going to a party, disguised in fancy dress.
But which of us is What or Who? It's up to you to guess!"

Lift the flaps of this gloriously funny book to find out which animal is wearing which fancy dress costume. But when it comes to the last page, even the animals themselves are in for a surprise . . .

'A dream team of writer and illustrator!' The Times

'The perfect pairing of Willis's rhyme and Ross's humourous illustration.' Good Book Guide


Jeanne Willis is one of the most successful children's picture book authors. She also writes for television and video companies, and has two children. Amongst her many other prize-winning books, she has written Who's in the Loo? which was shortlisted for the Nottingham Children's Book Award, won the Red House Picture Book Award and was the overall winner at the Sheffield Children's Book Award.

Tony Ross has been highly acclaimed and is in great demand as a children's book illustrator. His books are published all over the world. He lives in Wales.


Brilliantly funny with a monstrous pop-up surprise.

Baby London

A dream team of writer and illustrator!

The Times

This book is full of fun, told in rhyme, nice and simple … a lovely book for reading aloud.

The Bookbag

Packed full of pop-up surprises this is a hilarious lift-the-flap book with an excellent joke at the end.

Julia Eccleshare, LoveReading4Kids

The perfect pairing of Willis’s rhyme and Ross’s humourous illustration.

Good Book Guide

Wonderful catchy rhymes draw the reader through the story . . . Fun and colourful, young readers will delight in the surprises under every flap.

Parents in Touch

Brilliantly illustrated using bright, attractive colours.


This fun pop up book pairs Jeanne Willis’ clever rhymes with the always excellent illustrations of Tony Ross for an entertaining adventure with a twist


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