The journal kept by Dr John Rae during his years as headmaster of Westminster School.
Dr Rae's battle against drug users was a constant challenge.
When he was interviewed for the job, Dr Rae was not sure what stance he took on illegal drugs, but in a famously liberal school in the heart of 1970s London his battle against drug users was to become a constant challenge.
Dr Rae becomes increasingly involved in the national debate on education.
Harold Wilson wins the 1974 general election, but, as Dr Rae becomes increasingly involved in the national debate on education, it is inflation rather than politics that presents the sternest challenge.
Rae was called on to deal with anyone from a scholar stealing books to the Prime Minister.
During a typical day, Dr Rae was called on to deal with everyone from the scholar who steals books to the Prime Minister.
Rae wonders if he is as qualified for the job as a colleague who was a war veteran.
Dr Rae wonders whether he is as well qualified for the job as a colleague who is reputed to have killed a man with his bare hands when he was a member of the Special Operations Executive in the Second World War.