The I Index

Peter Fritzsche,
The New York Times Book Review
Remarkably rich.
Oliver Moody,
The Times (UK)
Terrifically insightful.
Brendan Simms,
New Statesman
Absorbing.
Ian Brunskill,
The Wall Street Journal
Its 800 scholarly pages are never dull.
Ben Hutchinson,
Times Literary Supplement (UK)
Ambitious.

Kirkus
A magisterial history.