Humble Book Bundle IT Security has a nice books bundle of IT Security books, available as PDF and as EPUB, DRM-free! All books are in English and the bundle for 13,49 EUR contains in total 24 books. The books ranges from

Understanding the New European Data Protection Rules”, “Ethical Hacking and Penetration Testing Guide” to “Information Security Fundamentals”, so I think it’s a nice bundle for individuals who are interested in this area… Well, I am!