This is not a book for beginners, or possibly not even journeymen. This is observations and considerations of a master beekeeper as he's plied his craft over 60 odd years (at the time he wrote the book). The significance of the book is that brother Adam bred the noted Buckfast honey bee, and has spent a very long lifetime doing it (given he died in 1996 at the age of 98). What you get in this book are primarily his thoughts on apiary management and queen rearing and selection. The techniques he outlines are familiar to most beekeepers, and the discussion he gives is generally on why he considers these methods optimal for the abbey's situation, as well as discussion on other methods he'd tried and why he discontinued them.
Who should read this: Historians of beekeeping and beekeepers who are beginning to encompass all areas of their craft, especially queen rearing.
Don't expect anything earth shattering, just concise and well thought out observations of one of the most noted master beekeepers.