Don't yet know which test to take out of the ACT and Digital SAT? Raise your score while you figure it out! "Grammar Rules for the ACT + Digital SAT"—a colorful, organized 54-page ebook—has all the grammar you need to nab as many points as possible on the ACT English section and Digital SAT Reading and Writing section…so you can GET IT and UNDERSTAND IT—in as little time as possible.