From Chris Heard at the Higgaion blog:
Biblical Hebrew prepositions...as an aid to help students learn the prepositions without porting them through English."
If you've studied Hebrew before, you may find this diagram to be a helpful reminder. If you're scratching your head though: never fear, http://www.hebrewmadesimple.com/ is here to help you learn Hebrew. The founder is a good friend who is welcoming to all students.
What are you waiting for?