[Nymph Philosophy] Why the nude female form?

[Jorge_Stolfi]

- where (in Europe) was it normal, accepted or for scholar/educational uses just tolerated to show such nudity at ~95% of the whole book?

I think I saw astrological/astronomical diagrams in some manuscript with nude people in some sectors.  Unfortunately don't remember any details.

Would nude figures be acceptable in illustrations of Greek legends?

All the best, --stolfi