The literary works of this Guyanese-born scholar primarily focus on pre-Columbian transoceanic contact theories, challenging conventional historical narratives. His publications often examine linguistic, cartographic, and botanical evidence to support arguments for African and Asian presence in the Americas before Columbus. A prime example is They Came Before Columbus, which details these arguments and sparked considerable debate within academic circles.
These texts offer a different perspective on world history, raising questions about established timelines and cultural diffusion. By exploring alternative interpretations of historical evidence, they encourage critical thinking and contribute to a broader understanding of human migration and interaction. Published across several decades, these works influenced Afrocentric thought and discussions surrounding cultural identity and historical representation, generating continued scholarly discourse and public interest.