Surfaces stacked high in piles, favorite novels displayed across a piano, tiny tomes tucked under an occasional chair, books stacked high enough to hold your coffee. Not everyone thrives in a pared-down space, even when it pops up again and again as a dominant image in our visual culture.
If this is you, certainly, lean into it. A stack of coffee table or art books twenty-high makes a glorious coffee table next to your favorite chair. A shorter bookshelf built as a pony wall can help create boundaries between rooms where they don’t exist. A vertical stack of books can feel as classic an addition as a traditional column.
A set of shelves in the cramped space under the stairs might make a person feel supported. A console piled high with books invites visitors to get a peek into your passions and persuasions. A wall of books can feel as engaging a visual as the most charming wallpapers. And a room of books can feel like floating in a sea of everything you love.  

Source: What to Do If Your House is Overflowing with Books