by David Niven · Contre-dires · tapa blanda · ISBN 9782849330340
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In this practical book, psychologist David Niven gathers 100 tips to achieve happiness. Each tip is developed through a concrete illustration from real-life experience and a scientific study reference that confirms it. The clear and concise style makes it easy to read, allowing you to open it to any page and apply these proven facts to your daily life.
