The free scientific comic books linked from this page. Just scroll down for English or Spanish versions. https://www.savoir-sans-frontieres.com/JPP/telechargeables/f...

And try to get ebooks and documents about biogas production, permaculture, survival skills, handicrafts, how various things work, free computer programming books, compiler construction (Jack Crenshaw's work, not SICP), sewing patterns, cake recipe books, cocktail books (tourism is about to increase). No political propaganda.