Taking into account the comments received, this research will have two areas of focus. The first is to know the range of victimization that the conflict in Guatemala generated, and establish the extent of victimization are located some of the Guatemalan artists who have devoted much of their work to keep the memory of what happened.
The second focus, which follows from the first, is to identify those artistic initiatives arising from local communities who are direct victims of the conflict. The idea is to know what kind of initiatives have created, what kind of narrative have chosen, what impact it has had. A not Guatemalan example of this type of art is the community of San Carlos, Colombia, the community created a play that tells the story of what happened in his town, from conflict to reconciliation with armed groups this in order to forgive but not forget.
These are some cases I’ve found that may be helpful:
Sergio Ramirez (in exploration)
Kamin (in exploration)
These are some of the academic readings that may be relevant:
Maurice Halbwachs. From on collective memory. The collective memory reader.
Joshua Hirsch. Post-Traumatic cinema and the holocaust documentary. Trauma and cinema
Jehanne-Marie Gavarini. Rewind: the will to remember, the will to forget.