- Author: Christian Felber, Susan Nurmi
- Language: English
- Year: 2012
- Author: Christian Felber, Patrick Camiller
- Language: English
- Year: 2019
- Author: Christian Felber
- Language: German
- Year: 2018
- Author: Christian Felber
- Language: Spanish
- Year: 2018
Change Everything
epub
- Author: Christian Felber
- Language: English
- Year: 2019
- Author: Christian Felber
- Language: Spanish
- Year: 2013
- Author: Christian Felber
- Language: Spanish
- Year: 2015
- Author: Christian Felber
- Language: Catalan
- Year: 2010
- Author: Christian Felber (auth.)
- Language: English
- Year: 2017
- Author: Christian Felber
- Language: Spanish
- Year: 2012