In a prolix study about "The romantic modernist cycle in Paraguay", Juan Manuel Marcos says that Guanes "Died without publishing a single book, and without giving the title of the ones published after his death: 'Del viejo saber olvidado' (Of the old forgotten knowledge, 1926), essays of theosophic tendency, a mythic isle in the middle of the positivism, and 'De paso por la vida' (Passing through the life, 1936), post-romantic poems inspired in Lamartine, Musset, Espronceda, Zorrilla.
In the presentation of the book could be read: "Bordering between the late romanticism and the initial approaches to the Paraguayan poetic modernism, the scarce but refined work from Alejandro Guanes [...] drops a tenuous crepuscular illumination through a hole generation of national writers.
From the penumbra of the pain, dressed of invincible memories, with the evidence of the immortal luck that darkly motivates the precarious palpitation of men, the poet named his time and his people, never forgetting a raised love to the fatherland, the scenario of unfortunate blood that occupied his youth".
Carlos R. Centurión on his impressive "History of the Paraguayan literature" says that "Alejandro Guanes, in the first decade of the 20th Century, wrote "La cámara oscura" (The Dark Chamber", a dramatic comedy that never released".
The illustrate man of the Paraguayan theater, José Luís Ardissone, released a play based on the life of Guanes entitled "Caserón de añejos tiempos" (House of older times), like one of the verses of the emblematic "The Legends".