Having read quite a few “compendiums” and “how-to” guides, some take a very emotionally-filled and visual approach, to tap into and encourage your belief in this form of divination. For me, I am attracted to a more pragmatic approach because I primarily use or research these tools for my writing. In my opinion, neither method is “bad” or “good” for, like all books, it depends upon what you want to get out of it.