A Swedish psychologist has read all self-help books out there – here … – Business Insider Nordic

Business Insider Nordic A Swedish psychologist has read all self-help books out there – here …Business Insider NordicEver since Dale Carnegie launched his ground-breaking book How to Win Friends and Influence People in the middle of the Great Depression, self-help books, methods, seminars, and recently apps and web sites have evolved into an industry earning … … Leer más – Read more… Self-Help Books Personal Growth Self-Help Youtube Channel