Humble Bundle is doing another manga-related endeavor! This time it's a bunch of stuff related to Attack on Titan (Shingeki no Kyojin). You can spend money to get legitimate, DRM-free digital copies of these manga series, novels, and audiobooks. Plus, some (or all) of it goes to charity (when paying, you can adjust how much of it goes to charity).

Paying at least $20 gets you all this:
Attack on Titan
Attack on Titan: Before the Fall
Attack on Titan: Before the Fall (Novel) (including Kuklo Unbound)
Attack on Titan: Junior High
Spoof on Titan
Attack on Titan: Lost Girls
Attack on Titan: Harsh Mistress of the City (Novel)
Attack on Titan Guidebook: Inside and Outside (at least I think that's what the Attack on Titan: Anime Guide is)
Attack on Titan: No Regrets
Attack on Titan Anthology
Attack on Titan Character Encyclopedia

Check it out here:
https://www.humblebundle.com/books/attack-on-titan-final-season-books

A just ruler amongst tyrants

Thanks.