Enterprise social software (ESS) is like social media, but it is used for business instead of just for fun. It's a way for people who work in the same company to easily communicate with each other, even if they aren't in the same place. For example, if your boss wants you to do a project, they can tell you about it on ESS, and you can then talk with other people in the company to get help with it. ESS makes it much easier to talk with team members, share information, and work together.