Dara Nasr, head of sales at Twitter, will deliver the keynote speech to an audience of FTSE 350 companies attending the Social 350 Masterclass on 4 June.

The former head of Youtube and display advertising at Google will close the day by explaining  how delegates can use social as an essential component in their digital strategy. Big brands including Barclays, Shell, Tesco and RBS have already signed as much as attend. Delegates may even hear from six digital marketing experts talking on topics including mobile, social and search.

The next Masterclass on social and fashion happens next Tuesday morning and may close with a keynote from Diana Verde Nieto, founder and CEO of Positive Luxury, an award-winning consumer guide on ethical shopping.

Following that, the Digital Retail and Digital Finance Masterclasses are booked in on the Century Club for 14 May.

For full details of the entire events click here.