These documents discuss visual thinking and management techniques for process improvement. Visual tools like charts and boards displayed in prominent locations allow workers to easily track performance metrics and identify issues. When implemented successfully, visual controls promote transparency, problem solving, and continuous process enhancement.

1. http://www.bp-3.com/blogs/2012/03/visual-thinking-and-bpm/
http://en.wikipedia.org/wiki/Visual_control
http://14principles.com/category/visual-management/
http://eyesonperformance.com/consulting.html#vm