Gwynne’s Grammar, by Old Etonian banker Nevile Gwynne, has received an endorsement from Education Secretary Michael Gove, who has told his department to stop writing pompous, illiterate letters.

A 71-year-old man called Neville Gwynne has been stirring up the great and good with his primer on the subject of English grammar. Prince Charles,… ...

Self-taught teacher Nevile Gwynne's grammar primer has garnered a cult following, and is about to go mainstream with a new, expanded version. Elizabeth Grice meets him.