Do not allow the nagging and whining of colleagues, family, or friends to ruin your day anymore. Find out how to put an end to their laments.Do not allow the nagging and whining of colleagues, family, or friends to ruin your day anymore. Find out how to put an end to their laments.

For many people, the glass is half empty. When the first warm day of spring arrives, they are already complaining about the heat. When it rains, they pour. After a big salary raise, they still complain about their neighbor's new car. Does this sound familiar? Then use your innate optimism and get rid of the complaining culture, both at home and at work.

After a career as international project and crisis manager, author and change specialist Bart Flos has become a professional complaint coach. More than anyone, he understands what drives notoriously heavy complainers, why they like it so much and how we can positively influence their mindset.