There are a couple of interesting books about that topic [1, 2]

The premise of most of them is that innovation its outpacing the hability of the average person to keep him self employable. That will lead to massive unemployment, bigger wealth inequality and social unrest.

[1] Race Against The Machine: How the Digital Revolution is Accelerating Innovation, Driving Productivity, and Irreversibly Transforming Employment and the Economy

[2] The lights in the tunnel. Where will advancing technology, job automation, outsourcing and globalization lead?