I always send anyone interested in anarchy to @larkenrose's book "The Most Dangerous Superstition"
It isn't a manifesto, but it does a fantastic job as explaining the philosophy of anarchy in layman's terms. https://www.amazon.com/Most-Dangerous-Superstition-Larken-Rose-ebook/dp/1624071694/ref=sr_1_1?ie=UTF8&qid=1471890299&sr=8-1&keywords=the+most+dangerous+superstition