"Practicing AutoCAD" has been designed to instruct you effectively and efficiently in how to make your own 2D drawings and 3D models and to achieve the desired views and sections. This book has been written by using mainly AutoCAD 2015 and the Operating System Greek Microsoft Windows 8. In Chapter 1 the basic principles for working with AutoCAD are presented. The AutoCAD working environment, the role of the mouse, the coordinate systems, the AutoCAD drafting tools and the saving and opening files procedure are explained. In Chapter 2 exercises for drafting 2D drawings are given. In Chapter 3 the basic principles for manipulating and modifying 2D objects in existing drawings of AutoCAD are presented. In Chapter 4 the basic principles for constructing, manipulating and modifying 3D objects in AutoCAD are presented. In chapters 2, 3 and 4 there are only exercises. Each of these chapters is divided in two main sections. In the first section we present the exercises and in the second section we give their solution.