Elliot Gindis is the founding author of the Up and Running with AutoCAD series of textbooks. He is a former AutoCAD drafter and designer who got his start in New York City in 1996 and has logged in over 25,000 hours of screen time with a wide variety of architecture and engineering companies. From 1999 to 2008 he was on staff with the Pratt Institute of Design and as visiting instructor at the New York Institute of Technology (NYIT), teaching beginner, intermediate, and advanced (3D) AutoCAD classes. He was also the president of Vertical Technologies Consulting and Design, an AutoCAD training firm, and has advised, consulted, or assisted more than 60 companies nationwide in using and optimizing AutoCAD. Elliot was part of the AutoDesk Developers Network and was a Certified Technical Trainer. He published the first edition of the Up and Running textbook with Elsevier in 2010, and has supported each subsequent edition until 2020, when Robert Kaebisch took over full-time. Elliot currently resides in the Los Angeles area, and is an engineer in the defense industry.Robert Kaebisch is a professional licensed architect and instructor in the Construction Sciences Group: Architectural/Structural Engineering Technician Program at Gateway Technical College. He teaches a variety of courses including and related to: architecture, construction, residential design and code, commercial design and code, mechanical systems, conflict resolution in construction and building inspections. He teaches a variety of different software in those courses including AutoCAD, Revit, SketchUp and MS-Office products.