My son’s favorite book series is Ranger’s Apprentice. I am hooked, too. Read my review of the Rangers Apprentice series, and if you want to see what the first book is like, you can preview it below using Google Preview. Try out chapter 2 (not just chapter 1) because the very first chapter of the series is a little confusing at first.
The best deal on these books is to buy the first three in the series as a set on Amazon.