A set of 3 books offering insights into smartphone addiction and digital minimalism. - Book Title: Protecting Your Brain from Smartphone Addiction - Book Title: The Shmoo Brain (Smartphone Brain) - Book Title: Digital Minimalism This is a bundled sale. Individual sales are not possible. No price reductions. Immediate purchase welcome. I've read through all of them once, but they are in good condition. I think it's a great deal compared to buying them at the regular price. Thank you for looking.