【Anonymous Transaction】 【Free Shipping】 This book was purchased used and read once. It's a set sale. The cover is in poor condition, but the book itself is good. Exploring the relationship between smartphone use and the brain, a 2021 first-half bestseller. - Title: Smartphone Brain - Author: Anders Hansen - Published: 2021 - Special Lessons: 50 Special Lessons - ISBN: 978-4-10-108862-2 - Bestseller: 3rd Place First Half Bestseller Thank you for viewing.