And because the book-buying upper-middle class does not trust the entrenched positions of America's ideologues, they are looking for fresh thinking – which a foreigner like Piketty, whose positions are not those of any large American political faction, provides.
With Iraq and Syria ablaze, and the Middle East apparently condemned to another generation of upheaval and bloodshed at the hands of his fellow ideologues, Abu Ahmed is having second thoughts.
Alexander Lebedev, the Russian businessman who owns the Evening Standard and the Independent, says it is not always clear whether wealthy Russian ideologues cultivating politicians in Europe are acting on direct Kremlin orders or just currying favour with the regime.
The lobbyists, the ideologues and the fossil fuel industry.
Yet at the same time under Thatcherism her ideologues in government presided over a massive government spending programme in public works, an enormous social housing programme and an ever-expanding state sector in one part of the UK.
Both misremember past leaders as unbending ideologues: Margaret Thatcher here, Ronald Reagan in America.
"There are others who are not ideologues," he said, referring to senior Isis members close to Baghdadi.
The book explained the efforts since the 1960s of vested interests and ideologues to underplay the risks of pumping ever-increasing volumes of greenhouse gases into the atmosphere.
A fundamental sweep of the department's board, critics said, involved bringing in wealthy businessmen and ideologues; the former permanent secretary Sir David Bell attacked Gove for "believing his own hype".
The Farc have publicly demanded that Trinidad, one of the Farc's top ideologues, be allowed to participate in the peace process in Havana.
Another is that it refers to the "al-Qaida al-Sulbah" or vanguard of the strong, which militant ideologues were calling for at the time to continue the extremist campaign beyond south-west Asia.
