I think i have seen that book before
Funny, I was thinking the very same thing, but cant recall where or when. Pity about the binder holes, but it is what it is. Interestingly to me, there is an interior ad for books that month including #15 itself. If the colors are correct, then "Planet Comics" would have originally been pink rather than red. But all the copies I've ever seen look like this one.
saw these books listed on Ebay a good month or two ago.
Main attraction is that the page quality is nice.