100 Days Happier is a collection of inspirational messages and quotes, based on the bestselling book The Happiness Code and its Ten Keys, motivating and encouraging the reader to be the best they can be.
- ISBN10 1742706215
- ISBN13 9781742706214
- Publish Date 1 October 2013
- Publish Status Out of Print
- Out of Print 4 March 2021
- Publish Country AU
- Imprint Hardie Grant Books
- Format Hardcover
- Pages 208
- Language English