Monday at Mobile World Congress has come and gone, but catch up on everything you missed in Monday's video round up.
- The details of Telefonica's "brain" – the organisation's first digital personal assistant, Aura
- How Olay are asking customers to send in a selfie to identify skin types
- What happened when the Drum caught up with Rainbow's – formerly Shine's – chief revenue officer
- And what the trade show's attendees really think about the re-release of the Nokia 3310
Keep up to date with all the latest stories from MWC here.