Both of my brother's loved to read (still do, in fact!). Some books they enjoyed when they were in grade 6(ish) were: "Soup"; by Robert Newton Peck (or "Soup for President" "Soup and Me" etc. There...
Well, you probably already know about the Harry Potter series. That would be good for teenage boys. Also, the Maximum Ride series is excellent. The Midnighters are also very good.
Alex Rider is a...
The Twilight Series by Stephenie Meyer The Inheritence Series by Christopher Paloini The Harry Potter Series by J.K. Rowling The Shadow Children Series by Margaret Peterson Haddix The Lord of the...