This line from Ferdinand Kuhn's review of the French Yellow Book (#18-19) caught my eye. I recall your posting of excerpts from that document in the past. What do you think of Kuhn's assertion?
I would say that is somewhat of a fair assessment. There are some facts in the historical record in general that are a bit maddening. The French Yellow Book does nothing to really allow the reader to assess the failings of the French leadership. I would not be the least bit surprised if entries that would have been telling of the French command and control structure were either deleted or intentionally left out.
However, I cannot say that the Yellow Book is completely worthless. There are nuggets of insight inside them that give you some perspective of at least how the French mindset worked leading up to the declaration of war in 1939. The British Blue Book falls under the same category. There are aspects in which it is lacking but it still is a useful source of information. In some respects they fill in the gaps for the other.
Now what I would LOVE to find, but cannot, is the Polish Green Book. This book apparently existed and was issued by the Polish Government in exile at the end of 1939 or beginning of 1940, but I cannot find a thread of evidence on whether or not there is still a copy of it or even excerpts from it in existence today. That might be very interesting.