Books

Instant Happy Instant Happy
2012
Happy Habits Happy Habits
2020
Think Happy Think Happy
2016
The 30-Day Plan to Whip Your Career Into Submission The 30-Day Plan to Whip Your Career Into Submission
1999
Instant Calm Instant Calm
2019
Life Is Long! Life Is Long!
2018

Audiobooks

Life Is Long!: 50+ Ways to Help You Live a Little Bit Closer to Forever (Unabridged) Life Is Long!: 50+ Ways to Help You Live a Little Bit Closer to Forever (Unabridged)
2018
Wie man sein Leben ändert indem man absolut nichts tut Wie man sein Leben ändert indem man absolut nichts tut
2011