Rees Brennan throws in a few cool vocab words (lexicon, crenulated, scabbard, sigil, and the like), but they're relatively spread out and even if you don't look them up (come on… look them up) they won't keep you from understanding what's going on. Plus this book is exciting. It's packed with action (and lust and drama) that will keep you turning pages from start to finish. Overall, it's a pretty straightforward—and really fun—read. Enjoy.