Idea for my desk. Only I need more bookshelves. And a drafting table. And made with pine wood - not painted. Very general idea. :-)
DIY Frame Shelves. You Need: 1×4 boards. You will make two cuts for each side. Add a line of Gorilla wood glue and Ryobi Airstrike Nail gun to make a box from these pieces. I used 3 nails on each corner like this.