Is it just me that finds this odd? (Probably) (Sir) Paul McCartney will be signing copies if his new children’s book at Waterstones in Piccadilly, London in early September. Why? Why would he want to spend time doing this? I don’t get it. Your speculation is required to help me understand. Please!

http://www.superdeluxeedition.com/event/meet-paul-mccartney-at-waterstones/