Katya’s work explores themes like memory, identity, the correlation between the two, and their representation in the medium of glass. Some works are externalization of her own personal memory, some seek to activate the viewer’s memory, and others depict communicative and collective memory in order to discuss and demonstrate the crucial role memory plays in the construction of national and personal identity. One element of this exploration represents the preservation of memories in cast glass through the use of negative space. As a skilled mould maker and trained sculpture Katya is fascinated by moulds, mostly by the combination of perfectly fitting parts that form an exterior shape and an interior of negative space. Her on-going desire to see the insides of a finished multi-part cast mould with its locating keys evoked the idea of casting the moulds themselves in glass. In these the object is absent but the glass walls and negative spaces replicate every detail of its form and texture, thereby preserving its memory. The negative space depicts the memory of the object and utilizes the ability of glass to carry positive and negative information simultaneously. This combination allows the examination of image in conjunction with form, light in relation to shape, the designation of negative space by its immediate environment, presence with absence, and tangibility with memory.