256gb is Yung Lean's first book, published by InOtherWords in 2025. The clothbound hardcover contains 574 personal iPhone images across 596 pages, organized into nine color-themed chapters. It was produced in Italy by Legatoria Industriale Artigianale and features a melanged green cover with red hot-foil typography, a red silk ribbon, and a silver sticker sheet. ISBN 978-1-7399309-7-4. A digital interview and preview of selected images is available at https://officemagazine.net/yung-lean-releases-256gb.