Do you read the inside flaps that describe a book before or while reading it?

Both. I usually read it a few times, once before and a few times while I’m reading the story, to sort of get a feel for how close the end is, or what kind of twist I think is coming next. I like to know what’s going to happen and why, if I’m buying a book and can’t get enough of a hook to make the book worth buying, I put it back, even if the cover looks interesting and it’s on clearance. ^_^ I’d rather buy a book I want to read.