Sebastián Santisteban

Sebastián Santisteban is the author of "Know the Only Truth," a book that has garnered attention for its controversial content.

The book is described as potentially the most dangerous in the world, spanning 280 pages and covering topics such as UFOs, religions, and hidden mental powers.

Santisteban's work appears to be aimed at revealing what he considers to be hidden truths about society and the world.

While some readers praise his ideas as enlightening, others criticize his writing style and the validity of his claims.

The author's background and credentials are not provided in the given information, leaving his expertise and motivations open to interpretation.