I think I read one of these books written by him. If I didn't read that far, then it's PJO. Yeah, I stopped reading the 39 Clues. It got ewww.

First 39 clues was written by him.

I'm trying to get my hands on book 4.

i actually read the first book to the 39 clues before PJ but, i read some of the second and didnt lkike it, so i didn't finish that series...

AMAZING SERIES!! this book made me fall in love with reading!!! before this series, I HATED reading, but now I LOVE reading!!!!
Thank u Rick Riordan!!!!

love u!!

It's one of my favorite book series!

best book series i ever read...heck he is my fave auther

I LOVED THE PJO SERIES IT WAS THE BEST SERIES EVER I HARDLY EVEN LIKE READING BUT THE SERIES WAS REALLY GOOD!I ALWAYS AND I MEAN ALWAYS WILL LOVE THE SERIES!

So AMAZING I'm actually reading it AGAIN! And I don't often re-read stuff. That's how EPIC it is. (I shamefully admit I saw the movie first. *teardrop* But after reading the book I lost all respect for the movie. So NYAH!) And I got my mom to start reading it. I felt accomplished!

I discovered Rick Riordan's awesome books thanks to my best friend Chelsea, who gave me the first three books of the Percy Jackson series for my birthday. =) Thank you Chels!! And I recently got my dad to read the Kane Chronicles. Yay!

I got 2 friends to read PJO and they're both at Lost Hero *giggles* I love those reactions! And I'm working on campaigning more of them.

thanks for the fact...i didn't know he wrote 39 clues!

my friend jose read the lost hero first

I read the first onE and loved I so I kept reading them then my friend told me to read the Percy Jackson and the Olympians series and I completely fell in love with his writing!!!!!!!!! I <3 u Rick!!!!

i picked pjo becase i read the lost hereo and the son of neptune and i am in love with the books and i am going to die waiting for the mark of athena to come out to keep me patiant (which means not trying to rip my hair out) for the next book i am going to reread the books as many times as it takes for october to come here faster OCTOBER 2ED COME FASTER!! woa sorry for the whole life story bye
-sammy leo anthanie valdez

PJO is my favorite series EVER!!!

PJO now I'm reading Heroes of Olympus

I had no idea he wrote 39 Clues! But Percy Jackson was my first.

My first book from him was 39 clues.I though PJO was just a stupid fad then i read it and cant stop