Although I really want built-in bookshelves like this , I know I’ll never have them as long as I live in tiny NYC apartments so I must dream a little smaller.

The ladder/folding bookcase makes more sense space and wallet wise for me, but there’s something about a big bookcase taking up an entire wall of an office or living room that I just love.

Left: Billy bookcase with height extention units, IKEA $229.97

Right: Dolce Dark Walnut Folding Bookcase, Amazon $62.99