The Grimores are always a good bet
Our generation luckily still has access to the same books As John Dee,Crowley,Levi and all of books that our idols learned from.
Then we have all of the diaries and books written by the folks I just named,then the books by the current writers,many of the writers are awful but some are decent..Now what Brysing said is the total truth,He in a round a bout way gave you one of the biggest secrets of Magick occult knowledge..No book in and of it self can Or will teach anyone the secrets of magick.They give us ideas,theories,Formulae etc but we need to crack the code,there are reasons why many of us read 100s or even thousands of books on this topic and end up spending life times doing the same.All books contain blinders and in some cases the writers don't know any better themselves but they pretend to.Some systems like my main working system Of Hoodoo hardly have any real books on the market.
The books are the same books we all read
The greater and lesser Keys of Solomon's
The 6th and 7th books of Moses and the rest of the Old Grimores
Mastering Witchcraft and so on,lists are all over the internet with a fast Google search and on Amazon just look at one then 100 other similarities are suggested.