With SISA, letters become a form of visual architecture. They give rise to shapes that seek not only to captivate the eye, but also to convey human qualities and create a connection with those who observe them. This dimension lies at the heart of COHA’s work: transforming sculpture into an accessible, universal and deeply humanistic language. The forms that make up SISA are imbued with symbolism. The pyramid, inspired by the letter “A”, evokes wisdom and knowledge, with firmly grounded feet. The rounded shape of the letter “C” recalls kindness and tolerance. The eyes, associated with the letter “O”, connect us to sensitivity and dreams.