Final answer:
The 'owl-eyed man' in Gatsby's library is astonished to find Gatsby's books are real, calling him an 'absolute Belasco,' a nod to theatrical producer David Belasco, known for realism. This shock underscores the theme of illusion versus reality in Fitzgerald's narrative, with Gatsby's genuine books suggesting a sincere pursuit of culture.
Step-by-step explanation:
When Nick and Jordan encounter a man with "owl-eyed spectacles" in Gatsby's library in The Great Gatsby, he is surprised to find that Gatsby's books are real and not just for show. He refers to Gatsby as an "absolute Belasco", alluding to David Belasco, a well-known theatrical producer and playwright known for his attention to detail and realism in stage design. The man is amazed because he expected the books to be just for show, part of Gatsby's fabricated image of wealth and culture. The reference serves to highlight the theme of illusion versus reality that F. Scott Fitzgerald explores throughout the novel, suggesting that Gatsby, much like a Belasco production, has meticulously constructed his image. However, the authenticity of the books implies a degree of genuine aspiration towards the culture and refinement that Gatsby seeks to embody.