To help me understand what you're looking for, please provide more context. For example:
* Are you asking about Nicolas Guillen's works? If so, are you interested in his poems, novels, essays, or something else?
* Are you asking about his life and biography? If so, what specific information are you looking for?
* Are you asking about something related to his legacy?
Please give me more information so I can understand your question and give you a helpful answer.