Purchased an early edition back in the 1960s and consider it to be possibly the definitive history of the Battle of Britain. This updated version only enhances the reputation of the book. It is written in a readable style that is not over fussy and is comprehensive and unbiased in its approach. The day by day record of events is particularly interesting and highlights the varying stages and tactical nuances of the battle. This book is a must for anyone interested in the Battle of Britain being comprehensive and thorough and using facts to formulate opinion rather than the more emotive and controversial personal interpretations of some recent histories. An excellent factual record of one of the most significant encounters of WW2.