Learn the why behind the how in this one-of-a-kind reference packed with tips and techniques from award-winning AutoCAD expert Dan Abbott. This info-packed guide reveals some of the best kept AutoCAD secrets on technical standards, AutoLISP programming, DOS functions, scripts, 3D, and everything in between. Based on his popular Things Every AutoCAD User Should Know session at Autodesk University and other industry events, Dan gives you the answers to frequently asked AutoCAD questions in his direct and entertaining style while using real-world case studies to put your skills into practice. Read it cover to cover or dive right in to the sections you need most, then get ready to improve your productivity, save more time, and become an AutoCAD all-star.