Gelernter Optimismus: Wie du deine Meinung und dein Leben änderst von Martin Seligman (engl.
22,88 €
Learned Optimism by Martin Seligman. Among his 20 books are Learned Optimism, What You Can Change and What You Can't, The Optimisitc Child and Authentic Happiness. His books have been translated into 25 languages and he regularly tours Australia.
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