George Omura writes the all-time best-selling Mastering AutoCADseries. He is an architect, illustrator, and animator who has worked on design projects ranging from resort hotels to transit systems to the San Francisco library.

Scott Onstott is an architectural software guru who publishes video courses on VIZ, AutoCAD, and other software. He contributed to more than a dozen Sybex books and created numerous visualizations for prominent architectural, engineering, and contracting firms.