DK's true-crime series voyages into the murky world of conspiracies and conspiracy theoriesEnter a hidden world of mysteries, scandals, secrets, and liesPerhaps it is human nature to believe there is more to the world than meets the eye - that the greatest secrets and truths are hidden from us.
Learn all about - Ada Lovelace and the world's first computer programme - Helen Keller and how she overcame her disabilities - Harriet Tubman's inspirational life and work - in this children's biography.
From Socrates to Jean-Paul Sartre and dualism to existentialism, discover the key philosophers and theories which have shaped the way we view the world.
Discover the lives and achievements of more than 90 of the world's most inspirational and influential entrepreneurs and business leaders with this audiobook.