Rick Riordan

I sometimes look at my bookshelves today and wonder which volumes my sons will treasure in twenty or thirty years. Which should I be saving for them? Which will fade with time?

My problem is never ideas. I've got more than I'll ever have time to write. It's all about how many I can get to, and which ones readers want to see the most.

I've been reading Greek mythology since I was a kid. I also taught it when I was a sixth grade teacher, so I knew a lot of mythological monsters already. Sometimes I still use books and Web sites to research, though. Every time I research Greek mythology, I learn something new!

I do like to wrap things up and leave some things to the readers' imagination.

There are days when I'll write for 15 minutes and have to give up and move around, and I'll write another paragraph and give up again. On other days I get intensely - focused on the process, sit down at 8 A.M. and won't get up until 8 P.M.

I go back and research, say, every reference to the Gorgons, and I find what the classical writers said about them and it's so much richer than you might get in an average Greek mythology text. I feel like an archaeologist - I'm dusting off these things that people have not seen for thousands of years and bringing them into the modern world.

I stick closely to the structure of the myths. I may have some fun with the mythology by changing the environment to modern-day, but the structure of the myths, the monsters, the relationships of the gods - none of that is made up.

I tend to think of a myth and then explore how it would play out if it were happening in the modern-day world. I modify all the myths I use, but I stick very closely to their structure - it is the hidden teacher in me.

You have to work hard to get to the top of your game. I think every writer has doubts! I still do all the time.