I haven't read
Tress ... or any other book by Brandon Sanderson (maybe someday). This post is strictly about differences in production value and technical details between the amazon supplied EPUB images and the amazon supplied KF8 images. I forget when amazon dropped color from KF8 images, but
Tress ... KF8 images have color.
It turns out that most of the images in
Tress ... are very robust angainst amazon mangling despite being quite a bit above average in number of pixels. I think this is mainly due to their nature and the care in their design and production with an eye toward being very compressible.
The images are mostly GIF with limited pallette and very smooth coloring. The only GIF that doesn't get passed unchanged is the title page, which gets shrunk from 1201x1803 to 942x1414 and converted to JPEG. This is a good place to mention that after the list of illustrations in the table of contents is a QR code containing a URL which has 16 webp images that have higher resolution than the EPUB images. For example, the title page is 1318x2048, but uniquely is also a fancier style. Just as the amazon EPUB images aren't much higher resolution than the KF* images, the rest of the webp images aren't much higher resolution than the amazon EPUB images. But the webp images are significantly higher resolution than the KF8 images.
The KF8 images look OK to me on a 6" 300 DPI e-ink kindle and unzoomed on a computer monitor. The EPUB images are better, but for me, not compellingly so. I think this is because of the skill and effort put into making the originals such high quality and smooth in spatial and color detail. So this is not the typical kindle book with images that really suffer from going through the meat grinder.
Lost Metal ... is another story.
The dimensions and size information for the amazon EPUB and KF8 images are included inline below and attached as TressEPUBimages.txt and TressKF8images.txt
Tress ... amazon EPUB images details:
Tress ... amazon KF8 images details: