The document discusses visual design principles for effective dashboards. It recommends deciding on essential content, sketching alternative designs, and getting early user feedback in iterations of 3-5 users. Key visual design elements include keeping designs simple, hiding complexity, focusing on the task, using visual planes to emphasize important elements, eliminating chart junk, and using small multiples. Color should be used deliberately and consider color blind users. The overall goals are for dashboards to provide what users need quickly and easily without extra visual noise or thinking.