I was looking for a free hand tool practise project... and a bookshelf for my school.
I used pallet wood for the frame. A frame legs are at 80 degrees and joined with a half lap joint then held in place by dadoed top rail through the half laps. Horizontal sling rails slide into mortises on the leg, then held with pegged mortises.
This is a final image, you can pin it or share it on any social network.