If you can read this sentence, then you are using one of the most important innovations in human history
- ISBN10 0670878081
- ISBN13 9780670878086
- Publish Date 27 August 1998
- Publish Status Out of Print
- Out of Print 25 October 2004
- Publish Country GB
- Publisher Penguin Books Australia
- Imprint Viking Children's Books
- Format Hardcover
- Pages 32
- Language English