mysql: command not found

How do I use MySQL from the CLI? When I use the terminal, I get:

Darrens-MacBook-Pro:~ thufir$ 
Darrens-MacBook-Pro:~ thufir$ mysql
-bash: mysql: command not found
Darrens-MacBook-Pro:~ thufir$ 

As you can see, MySQL is installed and running:

this system:

System Software Overview:

  System Version:   OS X 10.10.2 (14C1510)
  Kernel Version:   Darwin 14.1.0
  Boot Volume:  Mac OSx
  Boot Mode:    Normal
  Computer Name:    A MacBook Pro
  User Name:    thufir (thufir)
  Secure Virtual Memory:    Enabled
  Time since boot:  2:08