JOIN question

Hi there everyone, I'm transferring a client's product from a Visual Basic .NET ACCESS 2000 application to run on a custom install of Apache/MySQL/PHP which I created (With a custom installer which sets everything up for them). My question though, is on looking through their ACCESS database, there seem to be table joins - or at least that's what I understand they would be under MySQL 4. How can I read information from 3 tables at the same time? I am a little confused, I gather you use JOIN but I'm not sure how it works, could someone please show me an easy to follow example? Thanks, I really appreciate it. Oh and so far, on the pages that I haven't had to use JOINS, I can honestly say that MySQL is FAR faster than ACCESS from what I'm seeing in my development here. Chris