There is a kindle version (which would be closer to epub than pdf)
but it just is even worse than a pdf and the authors also include the reason for that:
> Due to the complex integration of images and text, this DK eBook has been formatted to retain the design of the print edition. As a result, all elements are fixed in place, but can easily be enlarged by using the pinch-to-zoom function.
You will realize that saying "PDFs should be only for printing" is a vast oversimplifcation for the requirements people have for different kinds of documents.
slighlty disagree with this. A fixed page layout has it's own advantages.
The reason we have more high quality pdf readers than epub readers is probrably connected to the format itself.
PDF readers usally are more more feature complete when it comes to stuff like annotations too.
Games like Kerbal Space Programm and factorio exhibit a lot of the concepts from the original research agenda[^1] because they are "Dynamic Environments-To-Think-In"
There is a kindle version (which would be closer to epub than pdf) but it just is even worse than a pdf and the authors also include the reason for that:
> Due to the complex integration of images and text, this DK eBook has been formatted to retain the design of the print edition. As a result, all elements are fixed in place, but can easily be enlarged by using the pinch-to-zoom function.
EPUB is simply not ready for complex layouts.