So, in no particular order of preference:
Who Stole Feminism? by Christina Hoff Sommers
The War Against Boys by Christina Hoff Sommers
Why Men Rule: A Theory Of Male Dominance by Steven Goldberg
The Myth Of Male Power by Warren Farrell
Why Men Earn More: The Startling Truth Behind The Pay Gap, And What Women Can Do About It by Warren Farrell
Spreading Misandry: The Teaching of Contempt for Men in Popular Culture by Paul Nathanson & Katherine K.Young
Legalising Misandry: From Public Shame To Systemic Discrimination Against Men by Paul Nathanson & Katherine K.Young
Brain Sex: The Real Difference Between Men & Women by Anne Moir & David Jessel
The Female Brain by Louann Brizendine
Heterophobia: Sexual Harrassment And The Future Of Feminism by Daphne Patai
There are other books out there, of course, but each of these says a specific essential point better than anything else I've read, & you won't go far wrong with them.
I used to be a feminist. These are the books that helped me change my mind.