Anyone know if/how you can transfer your iTunes library to a Kindle Fire? Googling it brings up esoteric stuff from 10 years ago.

IIRC, the iTunes library is epub and you'd need a converter to put it in a Kindle format.

But I could be wrong.

This post applies to music (because you said iTunes), if you are copying books, please say so.

iTunes keeps the individual songs in your Music/Music/Media/Music folder under your home directory (this is in macOS, not iOS, if your collection is only available on your iPhone, this doesn't apply). Individual songs are sorted into sub-folders based on Artist/Album/etc. On my Mac they are maintained in MP3 format, although other formats are supported and used depending on the source of the material, and whatever iTunes import setting put in place by the user of the Mac. These MP3 files can be directly imported to whatever music player that is being used on the Fire tablet without any conversion necessary. The tablet will have to gain access to the Mac's file system, perhaps via a file manager app such as ES File Explorer, or could be transferred through an external disk drive, SD Card, or network volume, etc.

So basically, you have to:

1) decide how you want to copy/transfer the files to the tablet.

2) get them in a location where the Fire can access them.

3) import them into the library of whatever music player you want to use.

Providing these details as well as the device/player from which you want to transfer may allow assistance with more specificity.

I'm now pretty sure I was mistaken and he means music.