A "Zibaldone" is a type of book that originated in 14th Century Italy, typically used as a notebook to collect notes, ideas, and observations on a wide range of subjects. True to its original name, "The Hacker's Zibaldone" is not just another cybersecurity book. It's a holistic, practical, and fun introduction to this challenging world by means of a varied collection of tutorials, reviews, insights, code snippets, walkthroughs, stories, and recommendations where anyone, from students and hobbyists to seasoned professionals will find something unexpected, curious and new. A wide range of cybersecurity topics is covered, including: * Introductions to basic concepts, terminology, and principles * Tutorials and best practices * Instructive code snippets * Step-by-step walkthrough of online CTF challenges * Reviews of cybersecurity-related books, movies, and games and even some original AI-generated and hacker-themed stories and artwork!