Follow the Author
Dr. Matthias Hammer
Dr. Matthias Hammer
E-books
Health, Relationships and Personal development
Self-help, personal development and practical advice
Practical advice: Life hacks / handy tips
Popular psychology
Mindfulness
Assertiveness, motivation, self-esteem and positive mental attitude
Personality traits
Emotions and emotional intelligence
Society and Social Sciences

Author's Books

E-book
Liebe das Kind in Dir
Dr. Matthias HammerDr. Matthias Hammer
Price
13,99 €
E-book
Der Feind in meinem Kopf
Dr. Matthias HammerDr. Matthias Hammer
Price
13,99 €
E-book
Der Freund in meinem Kopf
Dr. Matthias HammerDr. Matthias Hammer
Price
17,99 €
E-book
Der Feind in meinem Kopf
Dr. Matthias HammerDr. Matthias Hammer
Price
17,99 €
E-book
Die 1-Minuten-Strategie gegen Overthinking
Dr. Matthias HammerDr. Matthias Hammer
Price
15,99 € * Old Price 16,99 €