The "Stack" series features precariously stacked towers of irregularly shaped spheres in a variety of colors, including cobalt blue, viridian, and ultramarine. Each work in the series is named after the number of spheres used and the color of the topmost sphere. Originating from the artist's tragic experience of losing a child, the work expresses a yearning for recovery by stacking these uneven spheres to overcome grief. Though stacked as if on the verge of collapse, they ultimately stand firm, metaphorically expressing the challenges and hopes of life.

Annie Morris gained international recognition after participating in the 2021 London Frieze exhibition. Since then, she has exhibited in London, New York, Milan, and other locations worldwide, showcasing a wide range of works spanning sculpture, tapestry, painting, and drawing. Her work, encompassing a diverse range of autobiographical narratives, spans from childhood memories to recent tragic experiences.