The file comprises ephemera collected at the Wales TUC 2026 congress including campaign material produced by affiliated trades unions mainly around workers' rights, conditions of employment but with some material relating to other matters such as the environment and international solidarity along with conference papers, copies of the Morning Star and Socialist Workers, lanyards and other promotional ephemera.

Correspondence relating to the rights of employees and customers to use the Welsh language, along with a personal case regarding power of attorney.