Probably every dance music journalist has it in their library: Bill Brewster's encyclopaedic book "Last Night A DJ Saved My Life". It is over 600 pages long and covers the "entire" history of dance music from its origins to the present day. Almost. The book is now updated with chapters detailing the history of the women actors who contributed to the legacy, and it is "carefully modernised" with a fine-tooth comb without destroying the original intention.