For readers on this side of the Atlantic, there is also some value in being shown how explicit, and serious, Americans like to be about moral questions.
The Secret Barrister has attained a great success with his account of a legal system infected with squalid incompetence.
These two MPs have not found, at the first attempt, the sort of language that will appeal to the unconverted. But nor did David Cameron.
Amy Chua says they are blind to the decisive importance of tribal politics – an obliviousness which extends to America itself, and prepared the way for Trump.
David Frum expresses the dismay of an upright North American conservative at the triumph of Trump.
Afua Hirsch recounts her inability, as a person of mixed race, to feel she truly belongs in either Britain or Ghana.
And the Republicans have forgotten how to stop a demagogue from becoming their presidential candidate.
His memoir describes the travails of a non-Cameroon during the Coalition and under Conservative majority government.
Noel Malcolm warns that the European Court of Human Rights has become a threat to democracy.
But in his new book, he does not quite explain why she has remained Prime Minister.
The former minister upholds tuition fees, points out that these are good for the poor, and attacks academic resistance to competition.
He never resolved his conflict between being brought up to repress his emotions and as a politician having to express them.
A new book laments how the Right allowed this bully, fabulist and serial abuser of women to get to the White House.
His new thriller is readable, but lets the British Prime Minister and Establishment of 1938 off far too lightly.
Ashcroft’s new book: at the general election May failed to stop the Tories being seen as the nasty party
The PM lost her majority by running a single issue campaign which left Corbyn the chance to pose as the champion of ordinary people.