matt haig feminism

#LikeAGirl vs. Matt Haig: Can Men Write A Feminist Novel?

In January, Emma Watson spoke of her pride in being part of the HeForShe movement. She told us that feminism is a matter for both genders, and has benefits for women and men. When Matt Haig expressed an interest in writing about gender, however, twitter descended. Why? Can a man not write a feminist novel?