Microsoft PowerPoint

Greece's Kyriakos Chatziefthymiadis, who won first place in this year's Microsoft Office Specialist World Championship in the PowerPoint category, poses with his prize. "There were times when I was very stressed about whether I would be able to complete the tasks in the allocated time, but since my name was announced I have been feeling a joy that cannot be put into words.

The founder of Amazon and the world's richest man in the world, Jeff Bezos, has a different approach to business meetings than most entrepreneurs. In this year's letter to the shareholders, he reveals, that he has banned PowerPoint presentations.