I confess that when I take a Zoom call, I rotate my chair and my laptop 45 degrees so that my head is framed by books. This is because the straight-on view is of an office full of piled up junk.
The bookshelf background is tidier, but you can’t tell much about me from the titles, because I haven’t read any of them. They’re not my books – just my share of the general household burden, most of them paperbacks bought by my wife before she met me. But if you’re impressed by seeing the Complete Prose of Pushkin above my left ear, I’m also OK with that.