An announcement is a public statement that informs people about something that has occurred or will occur. It can be found in newspapers, magazines, public places or other public spaces. Announcements provide information to give notice of upcoming opportunities or events, and include key details like the purpose of the event, when and where it will take place, and contact information for the sender. Effective announcements follow a standard format including a title, addressee, statement of purpose, date and time, place, and information about the sender.