Can a Witch make spellbooks as a backup spell list in case the familiar dies?

[Magpied]

Kind of a weird question, but I really wanted to know.

Can they write spells down in a book? Why not multiple times?

[Angry Wiggles]

She may not, but she may store them in a Stone Familiar (Ultimate Equipment). A stone familiar can teach these spells to future familiars if necessary.

[Stockvillain]

Scribing backup scrolls to feed the new familiar is also a good idea.