Too Much and Never Enough:
How My Family Created the World’s Most Dangerous Man
by Mary L. Trump (2020)

Mary Trump, a trained clinical psychologist and Donald’s only niece, shines a bright light on the dark history of their family in order to explain how her uncle became the man who now threatens the world’s health, economic security, and social fabric.

Mainly a history of the Trump family. Not much is new here, but there is more detail and explanation of Donald’s motications.

It all becomes clear at the end with a tirade against her uncle that seems to be her trying to stamp an opinion for history.