Hi Sophie, The phrase "working at home" is also correct when used in the same context. "Work from home" is a more common saying, because it shows that you are still doing work for the specific company that you work for. If you work AT home, you could be doing any kind of work that is not necessarily related to your job. So, working from home is more specific and implies a regular job rather than your own personal work. Hope this helps! Margerhita