Speaking from personal experience, friend; JOS is the only source right now that is legitimate. There are some semi-reliable sources as far as books go, but until you study the content and information on JOS, you won't know how to sift through the mud to find the gold nuggets of truth within some sources. The best advice I can give, is to study the information within the JOS websites, as there are numerous. There is the JOS astrology website, JOS ritual website (which you can read and study, but you shouldn't do the rituals unless/until you have performed the dedication to the Ancient Gods, the True Pagan Gods of Old), there is the main JOS website, also the SatanisGod.org website, which is a sister site of JOS. (The JOS website, joyofsatan.org, also has a free library with tons of information for you to study) All these websites fall under the umbrella of JOS. The most plentiful, bountiful source of TRUE occult knowledge. Trust me, my friend. You are in the right place. The more you absorb and learn from JOS, the more you will be able to see through the bullshit in modern occult sources and books. The most common mistake you'll find in supposed "Devotional" books to the Pagan Gods is you'll see symbols and sigils with HEBREW lettering and such, on symbols that are supposed to be "devotional" in nature; when in reality, those hebrew lettering on OUR Gods symbols is like spitting in the face of our Gods. It's blasphemous, in the most extreme form. So, as I said, this is just one example of the bullshit you'll find in occult sources nowadays, along with christian idealogy embedded into the Pagan traditions and legends, to confuse people. It's all one big mess, but this is why we state repeatedly, that JOS is the one TRUE source, as the information on JOS has been vetted and confirmed by multiple sources, and also, most of it has been given personally to Clergy members FROM the Gods themselves. In JOS, we work to attain spiritual power on the path to the Godhead, as was the original GOAL for humankind, until the enemy saw to it to decimate spiritual knowledge and strip the populace from their GOD GIVEN RIGHTS!
You will learn all this, and MORE, from our websites, friend. Much love to you, and many blessings!