- EbookThe Power of BlessingKerstin Hack
- EbookCoaching BasicsKerstin Hack
- EbookQuestions for ReflectionKerstin Hack
- EbookPower QuestionsKerstin Hack
- EbookSaying Yes to MyselfKerstin Hack
- EbookHow to Get the most out of LifeKerstin Hack
- EbookSeries: QuadroKerstin Hack
- EbookHappinessKerstin Hack
- EbookLearning to ForgiveKerstin Hack
- EbookSeries: MicrobooksKerstin Hack