As Hillary Clinton’s longtime former speechwriter, I was worried about whether she could write a book with authenticity and self-reflection less than a year after her shocking defeat in the presidential election. But writing What Happened (Simon & Schuster, $30), she explains, became her therapy. The book forced her to reckon with her own mistakes as well as the external forces that contributed to one of the most bizarre and disastrous presidential campaigns in American history. It is her sixth book and in it she speaks with candor and a wry humor that the public rarely sees. Especially poignant is her masterful connecting of dots on the allegations of Russian intrusion into our electoral process. This is not self-serving; she clearly and persuasively alerts Americans to the very real dangers presented when hostile countries and political foes weaponize social media and technology to manipulate opinions and attitudes, and attempt to erode our democracy. The book is interesting, very funny, and covers really important stuff. Read it.