The cover of Central Asia: A New History from the Imperial Conquests to the Present, with its photo of the massive walls of the Ark Fortress in Bukhara, is something of a bait and switch. The book flies through that period implied by picture: the “imperial conquests” of the subtitle are not those of Genghis Khan or Timur, but rather the later ones by China and Russia: conquests of Central Asia, not by.