 Inequality, in many ways, may be the biggest question of our times. I'm Branko Milanovic. I am Adrin Jayadev. We're shooting a video lecture series on the topic of inequality. In some sense, it may be the one issue around which the whole world is most interested in trying to find solutions. We have five lectures. Why do we care about inequality, the measurement of inequality, what has been happening to global inequality, and then finally some policy solutions that we think are valuable? Many of you who are interested in income inequality, when you sort of really strip it down to what it is, there are really things that we face every day. When we talk about gender inequality, we face differences in wages between men and women. When we talk about citizenship rent, we actually face inequality between people who are born in a rich country, people born in a poor country. When we talk about inequality in access to education in the US, we talk about inequality between people who are born to rich parents and people who are born to middle class or poor parents. This all comes under this big word of inequality. But in reality, each of these issues are really topics that we face every day. So you should not feel scared that you're going to really have some very abstract discussion about an abstract topic. That topic is as concrete as it can be.