To hit the books is to start studying seriously. Time to hit the books, hit the books all weekend, ought to hit the books.
It is informal and American in origin, and it suggests a sudden effort rather than steady work. The same pattern gives hit the sack and hit the road.
1phrasehit the booksTo start studying seriously.
“Exams in a fortnight, so he will have to hit the books.”
hit the books is a phrase.
Practised in Idioms