Here are some books Your Score Booster recommends.
SAT
Official Guide
Never depend on College Board for advice on test-taking. The test-maker wants to pretend there are no tips or tricks for the test. This book has explanations to the exams, but not tricks and strategies.
Additional Tests
This book has 10 tests. It is far better than any other test-preparation book.
ACT
Official Guide
This is the official guide with real ACT tests.
