The book, "Guns In The Sky: The Air Gunners Of World War Two" represents a thorough examination of the pivital defensive-role played by Allied aerial gunners during World War II.  While the role of an aerial gunner was defensive in nature, they were the only members of a bomber crew that could fight back and frequently made the difference of whether or not an aircraft crew made it safely back to their base after a mission.  This book reviews the origins, developments and techniques of air gunnery in detail.  More than this, however, "Guns In The Sky: The Air Gunners Of World War Two" tells the gripping stories of air gunners' exploits during and between both World Wars that make it clear why the official motto of the Air Gunners' Association is "We aim not to please".  The author provides sufficient evidence of air gunner's courage, determination and skill when faced by enemy aircraft through scores of personal accounts from Americans, Briton, Australians and Canadians.  Overall, "Guns In The Sky: The Air Gunners Of World War Two" highlights an area of World War II military aviation heretofore seldom written about and as such is well worth reading.  The major sections of "Guns In The Sky: The Air Gunners Of World War Two" are as follows: 1) Acknowledgments; 2) Prologue; 3) (Part One) Chapter 1 - Genesis; 4) Chapter 2 - The Locust Years; 5) Chapter 3 - The Valiant Years; 6) (Part Two) Chapter 4 - First Op; 7) Chapter 5 - Behind The Guns; 8) Chapter 6 - The Long, Long Road; 9) Chapter 7 - The Long, Short & Tall; 10) Chapter 8 - They Pressed On; 11) Chapter 9 - Bale-Out; 12) Chapter 10 - Tales From The Bombers; 13) Chapter 11 - A Gunner's Diary; 14) Chapter 12 - Over 'Over There'; 15) Chapter 13 - Mission To Regensburg; 16) Chapter 14 - The Sun Goes Down; 17) Chapter 15 - The Infinite Variety; 18) Epilogue; 19) Glossary Of Abbreviations Used; 20) Bibliography and 21) Index.  In addition to an informative narrative, "Guns In The Sky: The Air Gunners Of World War Two" includes approximately 123 black and white vintage photographs.  This book is 182 pages and is in very good condition.  The author is Chaz Bowyer.  Edition published in 1979.