afuerstenau reviewed Das Happiness-Projekt : Oder by Gretchen Rubin
Review of 'Das Happiness-Projekt : Oder' on 'Goodreads'
4 stars
It helped me to think about my own happiness. :-)
I liked the practical approach at the end, that it was not like "I tried it one year and went back to normal" but more like helping others to make their lives happier.