The Conquest of Bread is a great layman explainer where a smart economist introduces to you many examples of how mutual aid and anarchist organization are not only practical but often essential, natural, and superior. It's examples are outdated (And some of it's predictions were prophetic!) but it's points are all preserved to this day.

Bullshit Jobs is a pop economism / sociology book where an anthropologist walks you through the absurdity of our modern economy, specifically our systems of employment and work, to build a case that our system is designed around backward incentives.

God and the State is a fiery call to action by one of if not the most successful anarchist political organizers in history. It is a brief but powerful calling out and condemnation of hierarchy and nation states, written before the author's falling out with Marx and organized communism (Disclaimer: The author was slightly racist, even for his time).

The Mars Triology is a sprawling three-novel scifi epic about the multigenerational colonization of Mars, featuring a rotating but interrelated ensemble cast who basically act as avatars for the various political tendencies they each represent. The author develops a "future history" of humanity, the complexity of which could go toe-to-toe with Tolkien, developing a wild pallette of libertarian, socialist, future-economist tendencies that fans out over several centuries and really gets the gears of your imagination clanking.

These are all selected as introductions to ideas. I have many more recommends but they're less "dip your toes in".