Not only that, price-wise brochure is the cheapest form of advertisement compared to others. Considering most likely the event will be organised by the student council, they also need to manage their money well. With radio or television, you need to put your advertisement several times during the day, which could lead up to a staggering price and for social media advertising, you need to put them more than once, and most of the time people are not interested in an advertisement while they are scrolling their feed. 

So there you go, advertising your school event using a brochure is still the most effective way to do so. What are you waiting for ? Go print your brochure now !