It might be about a man who is multi - talented and has some connection to a collection of 1000 novels. He could be an editor who uses his thousand skills to work on these 1000 novels. Or perhaps he is a scholar who studies 1000 novels and his skills help him in analyzing the themes, characters, and literary devices in them. His skills could range from literary analysis to historical research which he applies to these 1000 novels.
It could mean a man who has a large number of skills and is involved in 1000 novels in some way, perhaps he has skills relevant to writing or understanding 1000 different novels.
Well, 'a man with a thousand skills' implies a very capable and versatile man. The '1000 novel' part is a bit unclear. Maybe it refers to a man who has so many skills that he could write or analyze 1000 novels. He might be able to use his various skills like creativity, knowledge of different cultures and languages, and critical thinking to engage with a large number of novels.