These posters were created during the most prevalent stage of the COVID-19 in China from February to March 2020. Everyone is forced to stay at home to prevent the spread of the virus, so there is a house graphic as creative content. Isolation at home and wearing a mask are the simplest and most effective ways to prevent viruses spread. Now the world is still in the pandemic. I hope people all over the world will minimize unnecessary outings to protect themselves. Even if they go out, they should wear masks to protect themselves.