[Nicholas]

I don't understand the comments about the Hata/Izawa books being the "best by far" etc. They are the only English language books in their particular field!

However, they do not cover Army and Navy air forces organisational structures and components to the same detail as the Arms & Armour/Hippocrene book. They are only about fighter units. If you want to know how the Japanese Army delivered replacement aircraft, the geographical disposition of Air Armies or how Airfield Battalions worked (and a host of other organisational minutae) they will tell you little!

Comparing the books is like chalk and cheese. They are complementary rather than competitive.