This pamphlet is an updating of a previously published book chapter (2016) based on data up to 2014. The period from 2014-2020 includes the 2019 50th anniversary of the first peace wall and incorporates new information produced in connection with this. The pamphlet is intended to accompany an associated exhibition of 150 images incluidng a multimedia surround sound installation that had to be postponed because of Covid-19 restrictions
