The part on the left, with the tall wall and perpendicular rectangular compartment, is one piece, while the low shelf and open bookcase part on the right is another. You can separate them or squeeze them together however you want! Plus, it comes with everything you need for assembly, including a screwdriver.
Promising review: "Great purchase and cute. Working from home I needed something to organize my work essentials so I didn’t feel like my table was just a mess of stuff. This is better than I expected. It’s cute, it makes access to what I need easier and I’m able to have things organized. Even after I’m able to go back to the office I can see uses for this for many things!" —Jennifer
Get it from Amazon for $25.99 (available in four colors).