We first crossed paths with Michael Barber during not one, but two, sessions and workshops he led at Digital Summit Los Angeles. There, we saw him host a four-hour workshop on email marketing that kept us riveted and again for a workshop on marketing lessons from his mum. We enjoyed him so much we asked for more and invited him to be our guest on the Heart of Business. We talk marketing agencies, what makes great content, the importance of email marketing and more.