De Campos provides notes that explain the poem. The word LIXO (garbage) is formed by repeated printing of the word luxo (luxury). "The typographical display wants to operate in a direct impact - the metamorphosis of the opposite doublet - a concrete antiadvertisement unpoetical poem - a clean ode to garbage by the poet letter collector - an opop poem." -- Source of annotation: Marvin or Ruth Sackner.