The difference between drawing with windows and soliciting contributions.

1. Window painting refers to the design of adding a window to the existing architectural design drawing. The original architectural design may not take the window into account or there is a new demand later, so it is necessary to add a window to the external wall or wall of the building.

2. Contract is a common term in the fields of literature, art and media. Be a publishing house, magazine, advertising company, TV station, website, etc. They will send invitations to authors, illustrators, photographers, cartoonists, etc. for works that need to obtain specific content.