Back in the Dark Ages when I worked in an office, I'd get the "here, this is complete crap. You like this kind of complete crap!" recommendations all the time. I read weird-looking books (F&SF and mysteries) during my lunch break, therefore I must want to read... Flowers in the Attic, I think it was. Yeesh.

I read blurbs, but I take them with a grain of salt. Besides, my favorite author's tastes may not accord with mine anyway.