For beginners, maybe you can watch Chris Pottorff's videos on Youtube...
He has a Playlist titled, "Learn how to trade forex"
There are 10 videos in the playlist.
The videos are actually quite good for beginners,
provided that you can put up with the boring, monotonous, robotic voice... 
Focus predominantly on the chart analysis videos. That is the foundation of forex trading.
If you are really interested in reading up further, then babypips is the place to go to.
They have the complete "forex syllabus" there. It is called the "school of pipsology"
The lessons are thorough and you can track your progress.