Now revised and updated for the latest program versions, this bestseller is a comprehensive reference and tutorial for architects, engineers, drafters, and others using the leading computer-assisted design software, AutoCAD, or its "lite" version, AutoCAD LT. It begins with AutoCAD basics, including the AutoCAD interface and commands, and progresses to complex topics such as programming and customization. No AutoCAD experience is required to use this book, and a Quick Start guide shows beginning AutoCAD users how to create a technical drawing their very first day. More than 150 tutorials use drawings collected from AutoCAD pros, giving readers valuable, real-world experience. Includes coverage of AutoCAD LT, the world's most popular inexpensive 2D technical drawing program. The CD-ROM contains before and after real-world drawings, bonus appendices, freeware and shareware programs, the book in searchable PDF format, and a 30-day trial version of AutoCAD software System requirements: For Windows 2000 or XP - PC with Pentium processor running at 200 MHz or faster; at least 64MB of total RAM installed; recommend at least 128MB; Ethernet network interface card (NIC) or modem with speed of at least 28,800 bps; a CD-ROM drive. CD includes real-world drawings for the exercises; bonus chapters, freeware & shareware programs, a 30-day trial version of AutoCAD software, and more.