1. The buy button

    Video content

    Video caption: How advertisers are trying to use neuroscientific techniques to hack our brains

    Advertisers would love to find a "buy button" in our brains, which when pressed would make us buy their stuff. A new breed of "neuromarketers" are offering just that. Does it work?

  2. Video content

    Video caption: CEO Secrets: 'Try bartering to kickstart your business'

    The boss of an advertising screens company says he used a barter deal to get a prime London office location.