Soft covered case bound books almost sound like a contradiction of terms. Soft covered case bound books are exactly the same as hard back case bound books except for the fact that hard covered case bound books have a paper based “board” inside the cover and the soft cover style has no board. Both styles have the cover material “wrapped around” all four sides and the front and back end paper is mounted (or glued) to the inside front and back cover. These soft cover (limp) covered books are slightly cheaper than similar books with “boards” in the cover. When I have asked different people as to why they like and specify this style, the response is that these books are “different” and “they feel better when handled” (their words not mine).