Advertising is like when you want to tell everyone about your new toy. You make a colorful poster with big, bright letters and a picture of your toy. You put this poster everywhere, like on the fridge or in your room, so everyone can see it and know how awesome your toy is.
Imagine a parade where people are carrying big signs and shouting about something exciting. Advertising is like that parade, but instead of people, there are pictures and words in magazines, on TV, or on the internet, telling everyone about something new and fun.
Think of advertising as a story you tell your friends when you have something cool to share. You use your best words and maybe even some fun drawings to make them really interested. Advertising works the same way, using pictures and words to make people excited about a new game, a tasty snack, or a fun place to visit.