If you’re looking to add some new books to your summer reading list, you’ll want to head over to Amazon right now and download the 9 free Kindle books they’re offering today in honor of World Book Day. But hurry, you’ve got about 30 hours (and counting to do it).

The 9 free Kindle books represent different genres, from mystery and biography to historical fiction and true crime, all from authors from around the world. And yes, they’re all highly-rated. Trust us, we checked!

Related: Here’s how to get even more free Kindle books 

How to get free Kindle books for World Book Day

Related: Here’s how to borrow free Kindle books 

Books include Swedish author Joakim Palmqvist’s true crime novel The Dark Heart, Kazuki Kaneshiro’s book club novel GO, About the Night, historical fiction by Anat Talshir, and bunch more (or well, 6), all of which you can download free to your Kindle (or Kindle app) right now.

What a cool, free way to broaden your reading horizons! Now go start downloading.

(via Want Not

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