The keyword/phrase "investment books" relates to, and is part of, the classification(s) listed below, as used in the text or auxiliary documents of the QUFD website and in Father Jerome's scientific writings.
competition
consciousness
cooperation
economy
education
human evolution
Jung
KNOWING
Life
mind
philosophy
psychology
quantum consciousness
reality
responsibility
Satan
science
self
society
Soul
spirit
theology of reality
Veil of Separation
Veil of Unknowing
whole person
The GENERAL CONTEXT of such use is:
The term refers to another of Satan's "factors" of degeneracy which enable the maintaining of the monetary economy and, thusly, his Veil of Separation/Unknowing.
Also see Father Jerome's BLOG, for info about his latest Book,
"God, Lucifer and You! A ScienceBook of Quantum Physics and Reality, for 5 year old Kids and Adults!"