[dlazov]

Broad WW2 (meaning strategic?)

Hitlers War - David Irving

Panzer Battles - Mellenthin

Lost Victories - Manstein

War as I Knew it - Patton

World War II Day by Day

The Second World War: Europe and the Mediterranean (The West Point Military History Series)

A War to be Won: Fighting the Second World War

Battles Lost and Won

Stalingrad to Berlin - Erickson

Moscow to Stalingrad - Erickson

War of Extermination: The German Military in World War II

These are just a few examples of whats out there.

I personally have over 150 tomes (perhaps more) just on military history, not to mention all my war gaming stuff (paper maps and card board counters, etc).