But what you wrote about concrete and abstract nouns is somewhat true. You would use prepositions mostly with abstract nouns (<em style="background-color: transparent;">e.g. I have knowledge of this issue. His reaction to the situation was very unexpected. You should have sympathy for him.</em>), because they tend to be sort of meaningless without anything related to them.

 

But there are also cases where you will use prepositions with concrete nouns as well to express a relationship between two things (<em style="background-color: transparent;">e.g. I took a photo of you. He wrote a novel for children. We need a gallon of milk.</em>), but these depend more on the verb itself, not on the noun (<em style="background-color: transparent;">e.g. I took a photo of you VS. I </em><em>gave </em><em style="background-color: transparent;">that photo </em><em>to </em><em style="background-color: transparent;">him.</em>).

 

 

Your may be studying a more specific construction ("devotion to her job," "attention to detail"), but prepositions are often used with concrete nouns: a loaf of bread, the house across the street, a present for Emily, a novel for young adults, a book about Indonesia...