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It has been proven by tests that happiness or unhappiness is a state of mind. Research shows that people who read books whose premise is a healthy and happy tale, the reader's state of mind ends up being positive and happy lasting hours after the passage of the book has ended.

Produktbeschreibung
It has been proven by tests that happiness or unhappiness is a state of mind. Research shows that people who read books whose premise is a healthy and happy tale, the reader's state of mind ends up being positive and happy lasting hours after the passage of the book has ended.