Complex sentence: One of her most powerful pieces was a group of poems entitled "The Book of the Dead" (1938), documenting the details of the Hawk's Nest incident, an industrial disaster in which hundreds of miners died of silicosis.
Split into simpler sentences: One of her most famous and most powerful pieces was published in 1938, a group of poems titled "The Book of the Dead". It documents the details of the Hawk's Nest incident, an industrial disaster where hundreds of miners died of silicosis.