David Witherington Stewart is a Florida-based author whose writing is shaped by a lifetime at the forefront of science and engineering. A graduate of the University of Florida with a BS in Physics, Stewart spent nearly four decades (1957-1995) as a lead engineer, supervisor, and manager on some of the most iconic aerospace programs in history, including Atlas, Titan, Apollo, and the Space Shuttle. His career placed him at the intersection of innovation, problem-solving, and high-stakes technological advancement - experiences that now inform the depth and authenticity of his fiction. From 1995 to 2009, he owned L & D Consulting, specializing in grants and proposals, further refining his analytical and communication skills. Stewart later earned certificates in novel writing from Humber College and the Writers' Digest School, launching his writing career in 2006. Today, he brings scientific precision and imaginative vision together to craft compelling, thought-provoking stories.