This is the 2nd eBook provided by Richard Marmo that I have had the opportunity to review recently.
United States Camouflage WWII, is not a book written by Richard, but rather is a book compiled and published by Jay Frank Dial in 1964. Richard restored and enhanced it, and then converted it (with small additions) to PDF format in 2008. According to the promotional blurb, the original book has/had been difficult to locate and was expensive when found. I did a quick search on abebooks and was able to locate a few copies, some cheaper than others (none cheaper than this eBook). The original book had only one production run in 1964 and was never reprinted.