DIY Desk Easel made with Foldable Wall Brackets with an option of 90 degree angle for drawing

I simple idea of making desk easel without many tools. Two Foldable wall brackets, two boards of your desired size. MDF or plywood your choice. and a small bolt with a wing nut.
This is a basic DIY desk easel which can be made by anyone having experience with a screw driver.
This desk easel has an advantage of having 90 degree angle as well