Sir – Chris Koenig’s piece about the Thornton family (Weekend, February 3) reminds me of a story that used to circulate in Oxford publishing circles in the 1970s.

A callow, wet behind the ears, publisher’s sales representative was despatched to sell-in a new book to Thornton’s Bookshop.

Climbing the dusty stairs to the first floor, he espied an elderly gentleman inscribing figures in a ledger. This, he thought, must be the man who took the Big Decisions.

No notice was taken of him, so he coughed discreetly. The reaction was instantaneous: “Eh? What? Selling something, young lad? It’s my father you want! Two floors further up.”

Giles Woodforde, Kidlington