A Pret-ty wall

Enjoyed a visit to East London tabernacle this morning and then had time to kill as waited for train to Bruce Grove for 21st birthday meal of oldest's fiance.  Found one of our favourite coffee shops.  Their wall displays are always very creative.  I would be very happy for one to open in Enfield.  Do you know who owns Pret?  If what I have been told it true, it comes as quite a surprise.