Here are the writings of the great communist anarchist Peter Kropotkin. They have inspired many generations of people seeking freedom from tyranny. Ak press have a good anthology, called ‘Direct Struggle Against Capital‘, (https://libcom.org/library/direct-struggle-against-capital-peter-kropotkin-anthology), also well worth a read. ‘The Conquest of Bread‘, ‘Words Of A Rebel‘ and ‘Revolutionary Pamphlets‘ are a great place to start:
Here are the writings of the strategist and tactician, Errico Malatesta, friend of Bakunin in his youth and a theorist in his own right. His writing has inspired many generations of anarchists, being particularly good for popular agitation:
Here are the writings of Mikhail Bakunin. He was the founder of the international anarchist movement during the first socialist international. Bakunin’s writings are foundational in terms of anarchist thinking concerning organisation, critique and strategy:
Here is the full Organising guide from libcom.org. Also check out their reading guides here: https://libcom.org/library/libcomorg-reading-guide
Here is a good collection of workplace organising material from an past Brisbane Anarchist group.
Here is Punching Out and the various writings of Martin Glaberman on Workplace organising.