that's one the problems with the whole weekly book consumption culture.  the little prince is just a short kid's book that can easily be absorbed in a sitting. the art of the war is not just a book but a tool you'd have to constantly reference and test in various situations. simply reading cover to cover and putting it down after finishing it is borderline pointless. same for meditations. then you have classic sci-fi like foundation and dune, which can be consumed in a week, but where's the enjoyment and entertainment? those are massive imaginary worlds full of detail. speed reading will deprive the reader from most of the experience. might as well just read the plot synopsis on wikipedia.
Japan