I read the book and I'm sorry I didn't go see her when she did a reading in my area.

She wrote four books in all.

She died by assisted suicide.

https://buffalonews.com/norah-vincent-53-chronicled-passing-as-a-man-in-new-york/article_e55ca6db-7f2c-59cb-9815-a50bbc44a3bf.html
(this obit also appeared in the New York Times)

From Wikipedia:

Vincent's book Self-Made Man (2006) retells an eighteen-month experiment in the early 2000s in which she disguised herself as a man.[1][4] This was compared to previous undercover journalism such as Black Like Me.[3] Vincent was interviewed by Juju Chang on the ABC News program 20/20[5] and talked about the experience in HARDtalk extra on BBC on April 21, 2006, where she described her experiences in male-male and male-female relationships. She joined an all-male bowling club,[1] joined a men's therapy group, went to a strip club,[1] dated women, and used her knowledge as a lapsed Catholic[1][5][6] to visit monks in a monastery.[7]

Vincent wrote that the only time she has ever been considered excessively feminine was during her stint as a man. Her alter ego, Ned, was assumed to be gay on several occasions. Features which had been perceived as "butch" when she presented as a woman were perceived as oddly effeminate when she presented as a man. Vincent asserted that, since the experiment, she had more fully realized the benefits of being female and the disadvantages of being male, stating, "I really like being a woman. ... I like it more now because I think it's more of a privilege."[5]

Vincent also stated that she had gained more sympathy and understanding for men and the male condition: "Men are suffering. They have different problems than women have but they don't have it better. They need our sympathy, they need our love, and they need each other more than anything else. They need to be together."[5]

https://en.wikipedia.org/wiki/Norah_Vincent

https://www.npr.org/transcripts/5171860
(interview from 2006)