Psychologist Gustav Kuhn uses magic to show just how limited our conscious experience is.
Transparency is apparently the opposite of secrecy, but is it really a panacea?
Brian Cox, Robin Ince and special guests explore the science of magic.
Simon Callow charts the emergence of a wave of openly queer artists in the 1950s and 60s.
Philip Ball examines the curious relationship between science, stage magic and cinema.
Tiffany Jenkins on the use and misuse of 'gagging clauses' or non-disclosure agreements
Is secrecy within the family harmful, or can it offer a necessary form of protection?
A look at the purpose and power of secret objects and knowledge in different religions.
Cartoonist Gerald Scarfe introduces a fresh take on magic.
Magician Jolyon Jenkins investigates the links between numbers and illusion.
Truman and Clinton's attempts to transform the US armed forces.
Are plans for secrecy in some civil courts necessary to protect national security?
Aleks Krotoski explores the impact digital technology is having on secrets.
Jonathan Freedland takes the Long View of super injunctions.
In the Middle Ages it was thought alchemy could unravel the secrets of nature.