This optional extension to GO! Sync Mapbook combines the convenience of drawing on a paper map with GIS. Redlines or sketches are easily created using friendly menu-driven options and seamlessly shared with other field-workers and uploaded to GIS. Redline Analyst, an extension to ArcMap, works in concert with the Redline extension. This administrative tool automates the process of managing redlines/ sketches, history, and schema within GIS.