End Times: Elites, Counter-Elites, and the Path of Political Disintegration by Peter Turchin. Instead of just bemoaning the current state of politics, Turchin uses a data-informed comparison to previous, similar cycles to see where we're headed. What if? 2 by Randall Munroe. The physics, biology, and chemistry textbook we should have had in high school. Different: Gender Through the Eyes of a Primatologist by Frans de Waal. Primatologist with half a century of experience analyzes current gender identity debates from the viewpoint of someone who knows about more than one primate species (not just humans).
Also recommended in this reply