A grandfather and his grandson enjoy sharing knock-knock jokes, playing games, hot chocolate, watching movies, reading books, playing baseball and just spending time together.
- ISBN10 0142301906
- ISBN13 9780142301906
- Publish Date 1 November 2002 (first published 1 July 2000)
- Publish Status Out of Print
- Out of Print 9 January 2012
- Publish Country AU
- Publisher Penguin Putnam Inc
- Imprint Puffin
- Format Paperback
- Pages 32
- Language English