The third volume in Christoph Baumer’s history of Central Asia is as accomplished as its predecessors The Age of the Steppe Warriors and The Age of the Silk Roads. The Age of Islam and the Mongols picks up, as they say, where we left off: it runs basically from the 8th-century Abbassids through the 15th-century’s Tamerlane.

If you turn to page 105 in this book you will see two extraordinary figures standing and facing each other in a colored albumen print from 1872. They both have bare feet; one wears a light-blue three-quarter length robe, rather like an elegant silk dressing-gown, and the other a similar one of a darker color, with what looks a little like a skirt underneath. They have rather serious expressions on their faces, and medium-length thick, dark, dry-looking hair. They both have upturned mustaches, rather in the style affected by Kaiser Wilhelm II, although not quite as extreme, and they look as if they’ve been painted on.

A frequent reader of the American foreign policy journal Foreign Affairs will feel right at home reading Kurt Campbell’s The Pivot. The author was the Obama administration’s principal architect of the US pivot or “rebalance” to Asia, and beyond the abundance of conventional wisdom, offers some important insights into the emergence of what many are calling the “Asian Century”.