Logo is a programming language that is easy to learn. It is used for teaching students and children how to program a computer. It was developed to process a list of words. A command is an instruction, which the computer can understand and execute. In principle, the computer only understands very basic commands, which can then be combined to form more complicated instructions. Such a sequence of commands is called a computer program. Writing computer programs is not easy. There are programs which has millions of commands. To keep track of such a complicated program, it is very important to approach the task of writing a program in a structured and well-thought-out manner. This is what we will learn in this Logo programming course.