Who's on the cover of the New York Times Book Review? Male or female book author?

1/24/10--male
1/17/10--male
2/3/10--female

2/7/10--female

2/14/10--female

2/21/10--Male

2/28/10--female

3/21/10--male

3/28/10--female

4/5/10--male and female, (but online edition lists male's book first.)

4/12/10-- Male. (David Remnick's biography of Obama)

4-18-10--male

4-25-10--male

4/30/10--male

5/10/10--male, male, male

For the 16 week semester there were 12 male authors and 6 female authors on the cover of the Sunday New York Times Book Review.