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    Markus Öbrink

    Obálka knihy The Subtle Art of Being Understood
    [EN] The Subtle Art of Being Understood
    Obálka knihy Speak up! A short manual for students (and everyone else) in how to present stuff in front of an audience
    [EN] Speak up! A short manual for students (and everyone else) in how to present stuff in front of an audience