It is a form of opinion. While some think 39 Clues is better than Percy Jackson, some think Percy Jackson is better than 39 Clues. It depends on the person, as all have a different opinion.
The author of Percy Jackson is Rick Riordan, also authoe of the 39 Clues and The Red Pyramid.
The 39 Clues
Rick Riordon, author of the Percy Jackson and the Lightning Thief.
Try Percy Jackson or the 39 clues. They arent about aliens or powers ( well, maybe Percy Jackson counts as powers), but they are both reall good series. The first one in the Percy Jackson series is Percy Jackson and the Lightening Thief. Artemis Fowl is a book I liked, as it is similar to Percy Jackson.
Rick Riordan created Percy Jackson and The Olympians you can go to his web site at Rick Riordan.com the site is also about the heroes of Olympus, The Kane Chronicles, and the 39 Clues: The maze of bones. HOPE THIS HELPS OKAY
There is going to be a prequel to the Percy Jackson and the Olympians series ,Fall, 2010 there is also 39 Clues but some are written by different authors.
In my opinion, some good fiction books to read are the Harry Potter Series, the Percy Jackson and the Olympians The Lightning Thief, and the 39 Clues Series.
He wrote a few as he wrote Percy Jackson series, and that Tres Navarre series, and the 39 clues and a beginning a book call Red Pyramid
Eragon, the city of ember, the 39 clues books, the gardians of ga'hool, the cricket in times square, the hobbit, the lord of the rings,i hope i helped
charlie bone it greats book series ever and Percy Jackson or the 39 clues which is kind of a 3 grade book if you love read like me then do it 2010.
Rick Riordan has written: Percy Jackson and the Olympians The Kane Chronicles The 39 Clues (Founded and then collaborated with various authors) Tres Navarre Series The Heroes of Olympus
sold over 3 million copies of Percy Jackson and the lightning thief. also was #1 best seller for 39 clues: the Maze of Bones