Trying to find a David Walliams book

[Itwontrainallthetime]

My DD asked for a book called the World's Worse Kids. She said it was in her school library but another girl had rented it out she said it had a white cover. I had a look online to buy it for my DD but the ones I found haven't got white covers but she is adamant that it was white and says the ones I found are not the book she's after.
Does anyone know if there was one brought out with a white cover ? I'm thinking maybe she has got mixed up with another book.

He has a new one out called wolds worst teachers, maybe try that?
As well as w w children 2 and 3.

Worlds worst teachers has a white cover underneath the book jacket

I've just bought worst teachers for dd2, and it doesn't have a white cover. The 3 worst children books don't either. At least, not the copies we have.

goofy I hadn't taken it off! I've just wrapped it for her birthday, so couldn't check.

I have world's worst children, I think it came with a red cover but you can take that off and underneath it is white, definitely (great book!)

Thank you, maybe it didn't have a cover on which is why it was white.

The Workds Worst Chidren books in hardback, have white hard covers (with drawings on) underneath the paper covers.

There are 2 World’s Worst Children books, books have white covers underneath the paper cover in hardback.

That's the one brilliant thank you everyone .