Nice looking bookcase - sadly supplied with a wrong upper side, which is supposed to fit into the lower section - my friend had to purchase longer bolts & 'bodge' it to make it safe !
No supports for books at the sides - just open gaps - you'll need bookends, or lie books flat.
Poor response from Laura-James (suppliers) - just "you'll have to contact Wayfair" when I complained about the wrong section !
I won't be buying a Laura-James product again !