The six horrible Herdmans, the worst kids in the history of the world, cause mayhem throughout the school year.
- ISBN10 0062089951
- ISBN13 9780062089953
- Publish Date 15 February 2011 (first published 25 August 1994)
- Publish Status Active
- Publish Country US
- Publisher HarperCollins Publishers
- Imprint Collins
- Format eBook
- Pages 176
- Language English