Like many notes in Battlespire, this book did not have an official, in-game title. It's current title ("Password Notes") was chosen by Lady Nerevar based on its contents.
Password Note 1
[[Scrawled on a scrap of paper in a forceful feminine hand is what appears to be a phonetic transcription of a code in Daedric: the three letters jeb, meht, & quam:]]
djeh meh kw
Password Note 2
[scawled on a piece of linen torn from a drape]
Zyr = Zenaide = Berk
Password Note 3
[scawled on a piece of linen torn from a drape]
Meht = Gatanas = Memasgi