Structures is a work from 1977 that belongs to a central moment in Elena Asins' trajectory. In the mid-seventies, the artist concentrated on what she herself called the study of "the structure of the plastic field": works constructed from mathematical norm and logic, in which rhythm and form emerge from the minimal movement of the line. Without color, without gesture, without ornament.

In this large horizontal composition, Asins traces a sequence of vertical lines in Chinese ink on a white background. Each line descends straight from the top, bends slightly at some intermediate point, and opens at the base in a gentle angle. The variation between one and another is small but perceptible: the axis of each line shifts slightly, the bend appears at different heights, the lower opening varies in width. The result is a structure that reads from left to right like a musical score, with an internal tempo that runs across the entire surface.

Elena Asins demonstrates in this work the radical and rigorous proposal of her plastic language, building from structure, from mathematical norm and logic, a work that generates itself to become, at times, almost invisible. A final work of apparent simplicity in its calculations, but linguistically hermetic. True to herself and the fruit of her renunciation of color, Elena Asins' works are read first through the word and then through structure and line.

The work was acquired by Eusebio Sempere in June 1978 at the Iolas Velasco Gallery in Madrid, where Asins held an individual exhibition that year.