If you are ok with these books and have experienced success by them, then go ahead with other books of gallery of magick since they cover many aspects.
And you can search further back than 2 years. This forum is over 8 years old, there’s more than a lifetime of reading. You might want to start on something more general, but not too many, then specialise.
just got to “gallery of magick” website. they list all their books. Different flavors of magick for all kinds of purpose. than you can branch off from there after getting core basics down.