The discrepancy in size is due to those catbox links being from back when I had made that post of all those books. The source at the time that I had used for the book was from: https://b-ok.cc/book/2956212/550800 However, I just found that specific version of the book has been 'removed' from there since then, though there are other copies available on there. The archive.org version I linked to in this post only seems to have a slightly different introduction and a crappier resolution cover image, so I don't know why the pdf for it is so large. Here are those archive.org copies of the files on catbox as well: PDF Archive (35mb): https://files.catbox.moe/qta8er.pdf EPUB Archive (2.1mb): https://files.catbox.moe/wyfkj0.epub Updating the upper comment with these as well and marking those others as from a different source.