This is part of a larger collection. As the total file size is quite large at over 6GB, it will be divided into sections as separate uploads based on their respective categories. Please refer to title and cover page(s).
With due respect to your categorizing, you should feel free to pack as many of the future-uploads together as will equal 1 or so gigabytes. If this one 3/13 is 1.77 g, and 2/13 is 1.32 g, and the "larger collection. ... total file size is over 6 g" then why should 1/13 be 151 megabytes, and presumably many of the remaining sets be also meted out in megs instead of gigs? Not that I disagree with bringing some galleries of old-style anime fun into the modern day.
Well, the collection as a whole comes in 13 categories/chapters, or books if you will. Some of the books have more materials on a given topic e.g. mechanics; while others less so.
If I spread out the sets evenly in terms of file size or page number, then you'll have sets with a mixture of different materials in them, which wouldn't look very organised, and possibly harder to keep track of on the part of the collector, which is why I've also numbered them for the sake of easier management.
I thought that since the files are sequential, that book1 and book2 (of whatever) could be posted in the same gallery since they're smaller in filesize, (all of book1 followed by book2) while larger books (like 3/13) would clearly take a whole gallery.