It's been awhile since I originally posted, as I was trying to find more info. Thanks to Canadian Mutant for posting pics in his registry set, which I have "borrowed" to illustrate the case.
Below are pictures of 2 books that are labeled 14th printing (on the left) and Direct Edition (on the right). These are different copies of what I believe is the same book, as the CGC numbers shown are different between the 2 books.
The CGC Label says the 14th printing is from 1988, which the indicia in the book clearly states. However, the back cover ad, on both books, shows this printing was not done in 1988 as the ad states the figures are in stores in August 2008.
The action figure that this book was included in came out in 2008, for the 20th anniversary of the 1st printing, as shown in the picture in the above post.
The book that was included with the action figure is the 14th printing.
The UPC code is the same on both books, as shown in the photo below.
Both books have the same ad on the back cover that states "In stores August 2008".
So, I say that the registry is wrong. The 14th printing AND the Direct Edition are one and the same.
There are currently 15 books registered as 14th Printing and 8 books registered as Direct Edition. These should all be listed as 14th Printing with an annotation of "DC Action Figure Edition".