But here's their explanation for it:
But boys prefer adventure tales, war, sports and historical nonfiction, while girls prefer stories about personal relationships and fantasy. Moreover, when given choices, boys do not choose stories that feature girls, while girls frequently select stories that appeal to boys.
Unfortunately, the textbooks and literature assigned in the elementary grades do not reflect the dispositions of male students. Few strong and active male role models can be found as lead characters. Gone are the inspiring biographies of the most important American presidents, inventors, scientists and entrepreneurs. No military valor, no high adventure. On the other hand, stories about adventurous and brave women abound. Publishers seem to be more interested in avoiding "masculine" perspectives or "stereotypes" than in getting boys to like what they are assigned to read.
Hm, I don't know... Could Sony PS2, XBOX, and GameCube might have something to do with it? And: peer-to-peer downloading, internet chat, MP3s, etc. etc.