To clarify in advance - I've read most of the books on this list due to interest in the topic or the point of view, not cause i agree with the views of the author. While some books are pretty solid when it comes to information and research, the conclusions drawn are sometimes either too mired in authors world view or absolutely useless. As such, i will poont out authors political leanings and bias, when applicable, and also write my own thoughts about it after summary, as well how much i recommend said book. With that out of the way, lets roll.

'The Righteous Mind' by Jonathan Haidt

Political leaning - American Liberal (center left)

The book deals with the differning moral world views of people and how they lead to different political leanings. Mostly, it tackles the idea if morality is nature vs nurture (inherent and taught), how much the society plays the role in forming of our morality, as well as what role family plays in all of it. The author introduces a system of moral foundation, based on six pillars of morality and, using this system, find out that different political groups have different grasp on morality (for example, left has a strong care foundation, while right wing is equaly divided over all six pillars). Furthermore, the book touches upon human tendency to tribalize, claiming that religion, for example, was borne out of this need, and didnt create it.
The other concept it introduces is the rider and the elephant - the idea that our subconscious is where our morality comes from, and is only controllable by learning to handle it (the elephand), while our conscious mind (the rider) thinks they are in control, but are more or less a press secretary for the elephants whims.

My thoughts - I think that this is one of those must-read books, especially when wanting to understand and build bridges with other groups and people. Othering people cause they dont share our sense of morality is a rather easy and direct solution, but it wont lead to a prosperous society, more to a downfall of it.
There is an evolutionary reason why we tend to slip into open minded vs close minded category (progressive vs conservative), and only when these two work together can there be any meaningful growth - too progressive, and the identity of the group will disappear, thus leading to the downfall, too conservative, and the group will calcify, leading to slow and painful disappearance, both equally bad outcomes.
The idea of moral foundations allows us to understand that people on the other side have their own reasons and world-views, allowing us to build bridges and cooperate. All in all, i would suggest this book to anyone. Five stars.

'The coddling of the american mind' by Jonathan Haidt, Gregg Lukianoff

Political leaning - American Liberal (center left)
Bias - Much more lenient to the views and deeds of left leaning people than to right wingers he brings up in the book, some infos and stories arent well researched and, instead, fake narratives are taken as the truth.

The book addresses the rise of safeism and the negative outcomes it lead to. It starts of with an example of how the nut allergy was approached - banning of nuts almost anywhere - which lead to the rise of children allergic to nuts, since the ones in danger of acquiring this allergy had no chance of being exposed and thus, get their systems used to it, even citing a study where risk kids were allowed to eat nuts and had a much lower number of ensuing allergies compared to the test group that didnt ingest any nuts.
The childhood is the time where kids can test and learn their limits, learn to work with others, learn to deal with emotions etc., and all of these chances were stripped away in name of safeism - prohibition of rough play, parent supervised play sessions that undermined childrens ability to learn socialisation, reduction in child freedoms to explore (due to abduction scare in the 80s and 90s), influence of internet and social media and introduction of concept that speech is violence.
All of this lead to more impulsive generation of young adults that have hard time communicating between groups, with sadistic tendencies when it comes to punishing the outsider etc.
The book concentrates mostly how this ended up affecting academia and colleges, with safe spaces, X rights movements and perceived oppression behind every corner. As opposed to this, he talks about provocation and identiterian culture sprouting on the right as an answer to this, but concludes its a chicken and an egg scenario, where it cant be pinpointed who threw the first stone, since it only became noticable once it spilled out in the media.
He also touches upon the tribalism in US political world views, how it started and what the consequences are. The book ends with proposals and ideas how to raise children and design college clases and avoid safeism.

My Thoughts - Not so taken by this book like with the previous one. While it does hit the nail on the head and describes the current zeitgeist very well, its rather bare bonsey in describing why people on college campuses suddenly see racism everywhere and why right wingers get a kick out of 'triggering the snowflakes'. The suggestions at the end of the book are fine and dandy doe, even differentiating between the ways rich and poor households fuck-ups of child-rearing. A solid read, but not really anything groundbreaking, since all the ideas described in the book can be observed on ones own, but its nice to have it put in words somewhere outside ones head. Three stars.