Understanding Matrix Spaces
Matrix Spaces are a way to group multiple rooms together. Rooms can be in multiple spaces at once, and spaces themselves can also be included within other spaces.
Much like rooms, Spaces can be made available publicly or kept private. From the Element Matrix clients, Element Web App or Element Mobile / Desktop Apps, spaces can be found within the vertical navigation menu along the left. When viewing a space, all rooms and chats are filtered to show you only those within the selected space.
To start learning the basics of creating and using rooms, check our 'Getting Started' series of docs on the subject, starting with Creating a Space.