In my educational talk, I will introduce you to the world of neuroimaging data sharing. In the start, I will motivate why neuroimaging data sharing is a good idea and you should not only benefit from it, but actually actively participate in it. Next, I will focus first on the different types of data that can be shared, then introduce data formats for sharing and finally highlight different data sharing initiatives. I will end with a short list and overview over the especially large data sets that are available.