Photoshop was not the result of an elaborate skunk works in the depths of Adobe. Rather, it was developed by Thomas Knoll and his brother, John. The boys’ father, Glenn Knoll (a University of Michigan Ann Arbor College of Engineering’s Nuclear Engineering and Radiological Sciences professor), had been an amateur photographer and an early adopter of micro-computers, passions that his boys eagerly embraced. John took an interest in photography, developing his film in his father’s darkroom. He took more than just a passing interest in the hobby, since he began developing color prints–a very elaborate process compared to black and white film development. Learning to manipulate the color and exposure of the photographs he developed, John developed the skills that would later be applied in Photoshop.