People say assembly, the machine language, is a very difficult programming language. With this book I want to show you that assembly is not that difficult at all.Assembly is different and doesn't work like modern high-level languages, but once you understand how to work with it, assembly becomes easy.This book provides a practical introduction to programming in assembly. Without tormenting ourselves through the theoretical basics, we start right away and look at assembly and machine commands using practical examples. We will highlight the stumbling blocks and challenges with lowlevel programming.For this we use modern 64-bit Intel architecture and Linux.