Welcome again to everybody. Make yourself at home. In the time-honoured tradition of our group, here is the weekly discussion thread.
● Matrix homeserver and space
● Theory discussion group on Matrix
● Find theory on ProleWiki, marxists.org, Anna's Archive, libgen
Where should I start with Immanuel Wallerstein and Arghiri Emmanuel?
Historical Capitalism by Wallerstein is good and it's short. Can't really speak to Emmanuel but I believe the main work is the one on unequal exchange.