Ok, so if the sentence was J'aime des livres, this would also mean I like books? If so, how does one know or determine which to use, les versus des?
The object of "aimer" will always use a definite article. In this case, les. "Aimer" is a verb of appreciation (aimer, détester, préférer, respecter, etc.). "J'aime des livres" is not grammatically correct.
why love is wrong ?
aimer- to like
adorer- to love
On another question I translated 'aimer' as 'like' and it corrected me with the correct translation as 'love'. But for this question, it's the opposite.
You must learn the rules and conventions of "aimer". They're very particular:
Isnt aime love?? I got it wrong but isnt love and like the same thing
No, "love" and "like" are not the same thing.