* _The Meaning of Life_ (2004)
* _The Book of Enlightenment_ (2006)
* _The Source of Love_ (2008)
* _The Secret of Happiness_ (2010)
* _The Power of Hope_ (2012)
* _The Wisdom of Age_ (2014)
* _The Love of Life_ (2016)
* _The Light of Knowledge_ (2018)
* Μη λογοτεχνικά:
* _The Road to Happiness_ (2005)
* _The Art of Life_ (2007)
* _The Power of Love_ (2009)
* _The Essence of Life_ (2011)
* _The Journey of the Soul_ (2013)
* _The Gift of Life_ (2015)
* _The Future of Humanity_ (2017)
* _The Truth About Life_ (2019)