This is almost all of what survives of a journal Colin Perry kept between March and November 1940, when he was eighteen years old, written in his home in Tooting and in the City of London where he worked. The journal was never intended for publication, it is only the youthful, untrained outpourings of a proud and totally insignificant Londoner. It spans what the Air Ministry was to call `... the Great Days from 8 August - 31 October 1940' and the fifty-seven nights when the bombing of London was unceasing. This is the period enshrined in our history as the Battle of Britain, the most momentous year for Britain in the twentieth century.