Blender Master Class

Does anyone know which renderer Ben uses in his new book? No sense using Blender internal when Cycles is the future.

From reading the contents of the book the answer is both

A simple search would have given the answer to your question, rather than rely on someone else to do the work for you.

No sense using Blender internal when Cycles is the future.
Why would you want to limit yourself with just one renderer ? Use the most appropriate one for the job in hand, that may be cycles, blender internal or another one.