Parker is English nonfiction writer and biographer. In the following review of The Ghost Road, he remarks on the distinctive qualities of Barker's trilogy and praises her blending of fiction and historical fact.

In the following review, Joll remarks on Barker's treatment of shell shock and war in The Ghost Road.

In the review below, Gould remarks favorably on The Ghost Road.

Below, Levy remarks on the awarding of the Booker Prize to The Ghost Road and criticizes the novel as anachronistic.