I do believe i heard from his site that he was telling storys to his son (that had ADHD and dyslexia) about greek mythology and one day his kid sayed "dad why don't you make one up" so he did and eventually wrote it on paper and that's how the lightning thief started so later he expanded and made more books about that.
His accomplishments are writing books
COOL
Percy Jackson and the Olympians started in 2005 after the lightning thief was published.
yes Book 5: Percy Jackson and the Olympians: The Last Olympian (2009)
Writing the book series "Percy Jackson and the Olympians"
No. Rick Riordan is only writing 5 books about Percy Jackson. After that, he's supposedly going to start a new series with Egyptian gods. called the Kane chronicles and more books about camp half blood
He is not planning to write another Percy Jackson book but rather another Camp Half-Blood series which will feature Percy as a minor character.
Writing the book series "Percy Jackson and the Olympians"
Rick Riordan is writing another series about some minor characters from Percy Jackson and the Olympians. He is also writing one about the Egyptian Gods.
they've already filmed it, and its out on DVD in most places. Its called Percy Jackson and The Olympians: The Lighting Thief
The Percy Jackson and the Olympians series is concluded. However, the author of the Percy Jackson and the Olympians has confirmed that he is writing another series that will mention Percy Jackson. This new series is called 'Heroes of Olympus' and the first book 'The Lost Hero' will be released in October of 2010.
I found Percy Jackson a great book