Custom Shelf with Mortise and Tenon Joints

It’s starting to look like a shelf, this was my first time doing mortise and tenon joints.

What are Mortise & Tenon Joints?

noun

a hole or recess cut into a part which is designed to receive a corresponding projection (a tenon) on another part so as to join or lock the parts together. “a mortise and tenon joint“

Definitions from Oxford Languages

verb

join securely by using a mortise and tenon. “the top plate of the rudder assembly can be mortised to the top of the rudder post”

Definitions from Oxford Languages