the second exhibition also engaged with issues of representation, of subverting imagery and the difficulty of visually showing a lack. val williams notes that "the eclectic use of graphics, of cartooning and of advertisements began a process which took photography out of its traditional limits and re-established it as a medium of cohesive political propaganda." both exhibitions were intended for use in community centres, schools, trades union gatherings and every sort of alternative venue. the panels appeared in town halls, health centres, at conferences, in libraries and at the hayward gallery when it was selected by curator john tagg to be included in the 'three perspectives of photography' in 1979.