Dog or Guardian of the Peace (Perro o Guardián de la paz) 

"Dog or Guardian of the Peace (Perro o Guardián de la paz)" is a lithograph by Mexican artist David Alfaro Siqueiros. Created in a bold, graphic style, the artwork depicts a snarling dog, its fierce expression and sharp lines creating a sense of tension. The dog is positioned against a background of abstract shapes, possibly representing the city or the chaos of the world. Siqueiros, known for his political and social commentary, might be using the dog as a symbol of vigilance and protection in a turbulent environment. The lithograph is a testament to Siqueiros's mastery of line and his ability to convey powerful emotions through his art.