Mainly the usual repeating of previously published
inaccurate information concerning specific details.
For example, the text for the excellent series of shots showing the Do17 after belly landing, and burning out, at Leaves Green, on the edge of Biggin Hill airfield, on 18th August, describes this aircraft as taking off to attack
Biggin Hill, with the alternative target being Kenley aerodrome, and that it released bombs on Kenley, was hit by AA fire and crashed, the crew bailing out at low level.
The target
was Kenley, part of a coordinated high and low-level raid and, after passing through the PAC devices and AA fire at Kenley, the aircraft belly landed, on fire, with the crew still aboard, at Leaves Green.
Not only is this event covered in many books, and in great detail in at least one, the Kenley raid itself is described later in this same volume!