Publisher unknown (cover designer: Félix Beltrán, author: Félix Beltrán), "Símbolos, símbolos y más símbolos de Félix Beltrán," date unknown, circa 1970s. Offset print, book.

"Símbolos, símbolos y más símbolos de Félix Beltrán" is a monograph showcasing the symbol and logo design work of one of Cuba's most influential graphic designers. Félix Beltrán, who became a central figure in Cuban modernist design, created this volume as both a portfolio of his work and a theoretical treatise on symbol design.

The cover design exemplifies Beltrán's commitment to pure geometric abstraction and visual economy. Against a rich black background, flowing organic blue shapes create a dynamic composition that suggests movement and transformation—apt metaphors for the nature of symbolic communication. The curved forms demonstrate Beltrán's mastery of positive and negative space, with the black background functioning as an active compositional element rather than passive void.

The interior text discusses design philosophy and the grammar of symbols, emphasizing timelessness and universality as key principles in effective symbol design. Beltrán argues that symbols must transcend stylistic trends and maintain permanent value. This book represents an important document of Cuban design theory during the revolutionary period, when designers sought to create a new visual language for mass communication that was both aesthetically sophisticated and politically engaged.