This article is from the RSC/UKSC Cricket FAQ, by Ganesh with numerous contributions by others.
This document is a faq-list - Not a primer.
Your best options are any one of Jeff Tucker's,
Ron Knight's, or Dave M___'s primers. (All written
in response to this faq).
These can be found from
Alternatively Deb K Das's concise explaination
Das' and Jeff's work are especially recommended for those
coming in from a baseball background.