I always take off the dust jacket before reading a hardcover book.
If not it bothers me when I hold the book (it slips up and down).
My issue then becomes where I will temporarily put it until I finish the book.
It looks so odd lying there, purposeless, homeless.
When I finish the book, I reclothe it. And in its protective armour, it joins the others on the bookshelf waiting to be read again.