What it is
An old-fashioned, deeply indexed exercise directory: pick a muscle, get every exercise that trains it, with mechanics, joint actions and instructions. It looks like it was built in 2003 because much of it was, which is not a criticism.
Best for
Checking your own understanding before you prescribe something, and finding regressions or variations when a client cannot perform the obvious movement.
Watch out for
It is a reference, not a programme. The presentation is dated, and some of the deeper material sits behind a membership.