Start with high-confidence political ideologies books, then narrow by subgenre or adjacent topics.
Pirate Enlightenment, or the Real Libertalia
David Graeber
Politics Without Politicians
Hélène Landemore
The Politics Book
DK, Paul Kelly
Political Philosophy--a Complete Introduction: a Teach Yourself Guide
Phil Parvin, Clare Chambers
Our Political Nature
Avi Tuschman, Jay Snyder
The Revolt of the Public and the Crisis of Authority in the New Millennium
Martin Gurri