random selection

Just an observation but, here I sit at the library ... as I often do. Killing time between assignments. I was reading a book and had stopped to ponder a thought when I noticed a woman nearby pulling books from the shelf at random, glancing at them, then pushing them back in. Occasionally pausing to read the information on the back cover. The odd thing here, and the reason for my intrigue is that each of the books she touched ... over 10 that I personally witnessed, had a pink cover. It really got me wondering what it was she was looking for ... that she might find behind a pink cover.