Hello Fedi,

recently someone posted a book that detailed how to build #floppies from scratch (including the ferrofluid etc.) I thought I had saved or boosted it, but apparently not. Unfortunately I can't remember the exact title, maybe @nina_kali_nina knows? In general the book was talking about magnetic storage, and was from the 80's (I think). Please boost.
EDIT:
Found it thanks to @vaporeon_ and @gloriouscow , it's "Magnetic Recording, Volume 1".

@nina_kali_nina It's not the "Magnetic Recording Handbook" nor "The Complete Handbook of Magnetic Recording" ;
I do remember it was the first in a series, and had a brown-ish cover.

@gloriouscow @microblogc @nina_kali_nina yeah, this was it, thank you!