PREPOSITIONS ARE...EASY!

There are parts of the English language that seem difficult for Spaniards since they have nothing to do with our language. Prepositions may be one of them. Sometimes, they coincide, but mostly they don't. 
I give you a chart with a useful summary with prepositions. I hope it helps you. 

You are welcome ;)

(Spaniards: españoles
 Chart: tabla
 Summary: resumen)