This is a really terrific book about the 18th century, the Enlightenment, Bach, Frederick, and the whole conflict (which seems appropriate right now, at least if you're looking at the States) between Faith and Reason. The author has worked hard to make all the complex subjects involved not only very easy to grasp but actually gripping,and it's one of the most inspiring and educational books I've come across in a long time. Certainly anybody interested in Bach, whose biographies have never really done it for me, should buy this book: It makes him come alive. But more broadly, anybody interested in the history of ideas, music, Europe in the 18th century, or the world we live in today should read this book. I haven't come across a book this good in a very long time.