Alce Negro habla

The book is presented as the spiritual autobiography of Black Elk, an Oglala Lakota holy man, as told to John G. Neihardt. It recounts his life experiences and visions, offering a firsthand perspective on significant historical events and Lakota culture.

This work is considered a foundational text in Native American literature and ethnography, providing a rare and influential account of Lakota spiritual traditions and history from an insider's perspective. It has significantly shaped public understanding of Indigenous cultures and the impact of westward expansion.

John G. Neihardt also published "When the Tree Flowered: The Autobiography of Eagle Voice," which features additional narratives and perspectives from Lakota elders, further expanding on the themes and historical context explored in Black Elk Speaks.