HR metrics - what's in your toolkit?
A complete HR manager's guide to metrics
HR metrics and their impact on business
This overview to what an HR Manager should have in their toolkit, gives a great helicopter view, plus numerous examples of what HR metrics are there to do and their impact on the business.
With numerous examples, it brings to life what is possible with metrics. It's a good starter for ten.
You can follow the work of TC260 ISO HR standards metrics working group here: