THE POWER OF SIGNALLING The Glastonbury Music Festival is considered to be an institution in the music scene. The festival has run for more than 30 years and attracts more than 120,000 people each year, who mostly camp out for the four‐day event. Selling 120,000 tickets sounds like a mammoth task and yet they manage to do it every year in a matter of minutes. They have it down to a fine art and it involves a lot of signalling. If you are a hopeful attendee the first thing you need to do is signal your interest by pre‐registering for tickets. You'll then get an email from the organizers with an
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