My apologies: I just saw your request. You also don't have an email published so I'm not able to send it to you directly.
I would heartily recommend Liber Null and Psychonaut. You may choose to buy it via Amazon, but below is the ebook download (multiple formats).
https://archive.org/details/LiberNullAndThePsychonaut
Please know that most of your change will happen inwards at first. Your goal is to control yourself before anything else. From there, you will learn how to control your environment. And your ethics will be challenged. Many people go crazy with this power, in what we call magus-itis. Read more about it here:
http://www.witchvox.com/va/dt_va.html?a=usks&c=words&id=1083...
How is this useful: You will learn about yourself. You'll learn how to meditate, as well as how to use all 5 of your senses completely. If you wish to stop, stop. Nothing bad happens. Later on, when discussing things that aren't viewed, it does take some belief that they are happening. Things get weird when other people sense your 'hallucinations'. Do they, or do they not exist? I can't tell you. It's your path.
Historical: Many of the older spellcasting books since the 1700's used the name Liber [Something] as to denote it was a craft book. The 1700's through 1900 books were more of demonolatry and satanic worship. Think of them as mainly anti-Christian books of magic. There are other books outside this realm, but if you're interested, you'll find them soon enough.