Adlertag by Patrick G. Eriksson

[Jukka Juutinen]

https://www.amberley-books.com/adlertag.html

Any comments his previous books?

[Nick Beale]

used only one of his bomber Geschwadern … multiple conventional bomber Geschwadern

The plural of Geschwader is Geschwader, there's no extra 'n' (except in the dative plural — I learned that at school). Better luck with the rest of the book!

[Alfred.MONZAT]

His Alarmstart serie had lot of valuable first hand account so I would recommend them despite the author took some of them as face value to draw his own conclusions.