Clean of HeartBy Rosmarie Scott.
I don't know if this is what you are looking for, here is the first sentence of the intro:
This book is for practicing Catholics who accept all the Church's teachings, yet still struggle with habitual sins against purity.
Even if you do not have struggles I still recommend it. It is rich in scripture, history, and practice of Catholicism.
This book is traditional based, all scripture is quoted from the Confraternity Douay Rheims Version.
I got mine from Amazon.
Not downloadable though as far as I know.