WHAT IS IT? preVISUALIZED Thumbnail Sketchbook: Aspect Ratio 16:9 is the professional, thumbnail sketchbook for filmmakers. HIGHLIGHTS 48 full color sheets containing 32 thumbnail panels each. Each thumbnail is approximately 1.75" wide by 1" tall. Thumbnails contain Rule of Third guidelines for effective composition. Ignore the details. Thumbnails put the focus on the bigger picture. An essential part of the preVISUALIZED Pre-Production Suite. WHO IS preVISUALIZED FOR? Designed for filmmakers and other visual creatives, preVISUALIZED Sketchbooks are indispensable tools for the pre-production process."