No problem.
For a handy primer O. Codringdon's "Manual of Musalman Numismatics" is out there for free on google books. It was published back in the 1880's or thereabouts but it is an excellent introduction. The BMC Islamic is also excellent - it has all of the legends written out, and it's also in the public domain so you can fine a free e-version.
I'm just happy that there is some interest in Islamic coins out there.