This is an easy weekend woodworking project idea you can make from just barely over half a sheet of plywood and a 2×2 board. Edge banding is totally optional, but it does. Since i made this diy geometric bookshelf using plywood, i used iron on edge banding to cover the exposed edges.
Home depot diy wall shelves
Diy cat wall shelves ikea
Diy in wall shelves
Geometric Shelves Simple Yet Eccentric and Great For Every Room
Two 8 ft 1×2 common boards