So you have two computers, one at work and one at home, and perhaps an iPhone or iPad as well,  and you want the same contacts to be available to all of them.  The easiest way  to synchronise all your Address Book contacts is to use iCloud. If you make a contact or edit a contact in one of your computers, it is available almost instantly to all your other computers.  If you have an Android phone  read this article instead. Continue reading ⟩