Founder & Teacher at Power Prep, Inc.
This is the best ACT prep resource available as it has "real" tests in it unlike other publications However, it supposedly has 3 "new" tests in it according to Wiley, the publisher. Unfortunately, Practice Test 3 in it is a combination of Practice Test 4 and Test 5 in the 3rd edition. English is exactly the same as Test 5 (3rd edition). Reading and Science are the same tests in Practice Test 4 (3rd edition). Science has been updated with a passage removed. Math is a combination of questions from tests in the 3rd edition. It would have been preferable if the 3rd test in this book were truly a "new" test like the publisher claims and not a remix of tests in the previous edition. If you don't have the 3rd edition though, this book provides invaluable practice opportunities on official ACT tests. It's worth purchasing.