Thanks everyone I've learnt something Z was told to me to be a hang over from Morse code days. See K at the end of a QSO means "invitation to transmit" or "roger" or even short for "OK"

As for finding charts etc---to be honest I've found it in the front of many a diary or personal organiser. Since a lot of people do internet business these days it is a handy thing to have on call. Try that!!!

This is true for us in Australia where I am. Plenty are available in any newsagent. Bookstore maybe for you guys anywhere you get things like business ledgers for book keeping etc.