i started reading about anarchism at a very early age (14, 15?) after encountering a 2 page description of Nietzsche, Nihilism and Anarchism in an encyclopedia. I wasn't in uni yet and back then only universities had internet connection, so i had to find books.

From Proudhon to Anarcho-Communists to Stirner to even Anarcho-Capitalists(!) i've read all. Add some Dadaism and later Situationists (and after more time their inheritors Tiqqun). I thought I've met Bookchin's ideas late but apparently I've met him early through Ursula K. Le Guin (who wrote a wonderful fiction about an anarchist diaspora settling on the moon of a planet).

Not to forget thinkers/philosophers/poets (like Guattari for example, among many others) who wrote the most liberating lines without any anarchist consideration in mind.

I can't recommend books but a method: Find books that interest you and follow the citations upstream towards other books (or downstream towards their spawns or inheritors).

Now that we have Wikipedia, we're lucky to click/touch through articles and get books downloaded or delivered to our doors (if we're lucky to have doors).

Good luck to you.