“Dialectics”?

Hi, everyone.

I just started reading Total Freedom by Chris Sciabarra (warning: politics book), and a good half of it seems to be about ‘dialectics’ as a thinking tool, but it’s been total rubbish in trying to explain it. From poking around on the internet, it seems to have been a proto-systems theory that became a Marxist shibboleth.

Am I understanding that correctly? The LW survey says about 1 in 4 of us is a communist, so I’m hoping someone can point to me resources or something. Also, I’ve read through most of the sequences, and it didn’t use the word dialectics in there at all, which seems strange if it’s such a useful thinking tool. Is there something wrong with it as an epistemological practice? Is the word just outdated?

Sorry about the (tangentially) political post, I’m just kind of confused. Help?