Carr's maps are of architectural and historical interest rather than being geographical, and give brief details, observations and quotations in a quirky style about buildings, historical events and people related to places in the old counties of England, before they were reorganised in 1974.
Carr sold his novels and small books published by the Quince Tree Press directly to booksellers and by mail order to readers, and offered copies of his other novels bought as remainders from his previous publishers.