Early bird tickets are often offered for events that are expected to be very popular, such as concerts, sports games, and festivals. By purchasing your ticket early, you can ensure that you get a seat and save money at the same time.
Advance tickets can be purchased online, over the phone, or in person at the venue. Some events may also offer group discounts or other promotions for advance ticket purchases.
It's always a good idea to compare prices before purchasing an advance ticket, as some websites and ticketing agencies may charge additional fees. You should also read the terms and conditions of the ticket sale carefully, as some advance tickets may be non-refundable or subject to other restrictions.