Shopwindow is a kind of really useful media to show what the store selling to attract consumers.

Billboard, a directly way to tell public what contents we want to spread.

Art, also a kind of media

The left photo is a group chat  of wechat (a Chinese social media app ), i fall behind my group when we founding all different kinds of media in Bourke st, so i just used wechat to asked where is my group members. Phone is one of the most important media in the world, many people just cant live without phone.