Qian Zhongshu wrote about Song poems in his book "Tan Yi Lu". He talked about the styles and themes of poems by famous poets like Su Shi and Wang Anshi. He came up with new ideas about how Song poems are different from Tang poems. Qian Zhongshu also analyzed how Song poets created their poems, focusing on how different literary forms work together. His work helps us understand the techniques and values of Song poetry better.