I appreciate that Mr Holland must have put in a lot of research effort in the writing of this book, but unfortunately I find his style rather irritating - it reminds me of essays I wrote when I was in the Fifth Form. His grammar is sometimes poor, and his syntax unimaginative. Additionally, he does not seem to have much of a grasp of technical matters - for example, he uses "wide" where he means "diameter", and "height" when he should say "altitude". Also, in WW2, the "Graf Zeppelin" was an aircraft-carrier, and not an "airship". And a .303 calibre bullet most certainly weighed more than the 'just over a gram' that he states. These may be small points, but are irritating to anyone with a technical background. On the plus side, he does blow away a few of the hoary myths concerning key characters such as Gibson and Wallis - Harris too, for that matter. The Paul Brickhill book was more accurate, technically, but annoying due to its (now outdated) gung-ho Biggles British-ness. A few more photos would have been appreciated by this reviewer, but one can't have everything, I suppose. All in all, not a bad effort, certainly, but probably not quite up to John Sweetman's book.