The Percy Jackson and the Olympians Series by Rick Riordan
While I was in D.C., some of my students were reading The Lightning Thief for a book group. I loved the idea of introducing students to mythology through a fiction series and a well-written one at that. I started in on the series as soon as I got back home, and am now on the fourth. They are intended for young teens, but they are interesting enough for adults. I have learned so much about Greek mythology and really enjoy Percy's adventures. Check them out!