As I said in my comment, I think I've answered this elsewhere, but without tags, I am not playing the game of hunting further than I have already.
First (shameless plug): Anarchy 101 is a good collection of stuff from this site (which, obviously, I think is worthwhile, seeing as I contribute so much...)
-Anarchy Works by Peter Gelderloos - a readable intro to anarchy in practice.
-Prison Memoirs of an Anarchist by Alexander Berkman - *sigh* this is the best.
-Elements of Refusal by John Zerzan - if you want a book that covers the bases of green/a-p perspectives, here it is.
-Mutual Aid by Peter Kropotkin - Why do I still suggest this? I dunno, but I do. It is dated, overly simplistic, and also worth reading). Also Memoirs of a Revolutionist.
-Against His-Story, Against Leviathan! by Fredy Perlman - Fredy was not an anarchist (he was a cellist!), but anarchists should read this and Letters of Insurgents.
Other author names to investigate:
Bob Black (pig fucker, or something, but also cuttingly honest)
Uri Gordon (academic, civilization skeptic, and anarchist against the wall)
Paul Avrich (scholar and friend of anarchy, rip)
Voltarine DeCleyre (originator of the concept of anarchist-without-adjectives, anarcha-feminist, general badass)
and stuff at www.theanarchistlibrary.org
Wolfi Landstreicher (playfully fierce anti-civ/pro-insurrectionary egoist).
Plus periodicals! AJODA and Modern Slavery are current favorites. The journal Attentat, Green Anarchy (rip - you can read many of their things online or in the book Uncivilized).
All of this is informed by my particular perspective, and should not reflect anything close to a comprehensive list.